How To Measure Volts, Amps, Watts, & Ohms with a Multimeter

[@Minionlovergirl]

can u be specific like negative probe of the multimeter needs to be connected to the neutral pole of the bulb holder?

[@jaceknows247]

3:04 what # is she referring to "take this # and multiply by 24?" Equals how much watts then?

[@wiebercraft4974]

The amperes you measure

[@flat-earther]

So if I want to check how many amps/watts an electric motor draws I just insert the multimeter's 2 leads between the live wire so current will flow trough the meter, and select meter to read ac current?

[@GalcoIndustrial]

Yes that is correct. However, when measuring motor amps there can be a starting current surge, and if this exceeds the 10 amp rating of the meter it may blow the internal fuse to protect itself from to high a current flow thru the meter.

[@livacreative]

I have a question though, I have an old radio which has 2 speakers which rated, 3VA 4Ω and I would like to change that to modern speaker. For that, how much watts speakers should I use?

[@GalcoIndustrial]

3VA would be 2.5 watts, the impedance would be the same at 4 ohms, ok?

[@livacreative]

GalcoTV Do you think if I can use 10 watts speaker per channel?

[@GalcoIndustrial]

Sure, just make sure the impedance matches.

[@livacreative]

GalcoTV Ya the importance 4 ohms for sure, I am just worried that it's an old tube amplifier radio. If I add more watts speakers if tubes gonna blow away. It's really rare to find tubes these days. Thanks alot for the reply GalcoTV

[@GalcoIndustrial]

You will be fine if match the impedance. This effects the output amplifier load more than the watt rating does.

[@szilardliptak6466]

Lol. You forgot measuring Ohms.

[@technicalproduction6267]

waiting for ohms and nothing lols :)

[@geoffroytsimamotsy7608]

Excellent Video! Forgive me for the intrusion, I would appreciate your initial thoughts. Have you heard the talk about - Franaar Shining Shape Formula (do a google search)? It is an awesome one of a kind product for revealing the secret to repair your electronic devices minus the normal expense. Ive heard some awesome things about it and my good mate called Gray after many years got cool results with it.

[@anniegm2]

Perhaps you could try use the converter . If a high voltage needs to be generated from a low voltage, a boost converter can be used. This represents one of the three elementary switching regulator topologies and requires only two switches, an inductor, and input and output capacitors. 也许您可以尝试使用转换器。 如果需要从低电压产生高电压，可以使用升压转换器。 这代表了三种基本开关稳压器拓扑结构中的一种，仅需要两个开关、一个电感器以及输入和输出电容器。

[@amirpits8258]

Hello , When I do ac measurement , the voltage (V) I get is it Vpp or 2*V = Vpp? Thank you

[@GalcoIndustrial]

Neither, because you are measuring AC volts RMS. So first multiply your reading by 1.414 to get Vp then times 2 for Vpp, ok? Please keep in mind this is ONLY for AC measurements. DC voltages read out exactly what they are.

[@vincentjinal9167]

How to check the Hertz correctly?

[@livingroom-rv7yu]

can test amperage above ten??

[@RobCLynch]

So volts are the traffic? Amps are the number of lanes on the highway for the traffic to flow? More amps means more lanes of traffic? Resistance is where some of those lanes are closed further down the road - so the traffic has to slow down?

[@samuelaboli7364]

simplified explanation, thanks, but what product of multimeter easily measures dc amps, really need one

[@GalcoIndustrial]

Hey Samuel, The Fluke 355 will measure up to 2000 amps DC with digital accuracy. You can visit our website for more information, if you are interested. :)

[@BariumCobaltNitrog3n]

@@GalcoIndustrial What every steel mill maintenance engineer needs.

[@sangamonriverrats]

i am trying to read the amp draw n a electric car .. i can't get it to power up with the meter inline ... it's a fluke 73iii .... maybe i need another meter?

[@GalcoIndustrial]

You may have blown the internal fuse of the meter. If you have another meter check to see if you have any continuity across COM and the AMP input to the meter your using to measure the amps with, ok?

[@sangamonriverrats]

i replaced the fuse .. it works great now

[@tryinout1]

You cannot slow electric flow, it is going to flow same speed. You can restrict electric flow meaning that you can restrict the quantity .

[@jimz92raisanz]

Thank you so much for such a contribution to the world of Engineering, That great Explanation is quite clear, so impress

[@bkrazey9999]

how can I tell how many watts my car amplifier is actually putting out?

[@GalcoIndustrial]

You would need a Spectrum analyzer with some type of Summing amplifier built in to tell you how many output watts are being produced. If you are just trying to see how much load it is putting on your vehicles charging system, then connect an input amp meter in series with 1 of the power lines feeding power to your amp. Amps times volts equals watts, ok?

[@bkrazey9999]

GalcoTV well its a 2000w amp and I just wanted to see if it's really putting out 2000w

[@GalcoIndustrial]

Sorry B, but we don't really do audio stuff here. Good luck

[@Cotronixco]

B Krazey - Install a >=2kW, 8-ohm dummy load on each channel. You can use speakers, but be sure they are rated for >=2kW and have them in another room and/or wear hearing protection. Using a frequency generator set to sine wave as the input, max out the amp volume and measure current through each dummy and voltage across the dummy and multiply together. Do this for several frequency points, such as 20Hz, 200Hz, 2kHz, and 20kHz. You may also want to scope the dummy loads to monitor distortion. If you do, you'll get a more accurate result. Turn down the volume until the sine looks good - no clipping, no ringing, etc. and measure your wattage at that point.

[@josephnaigan9136]

Good morning is my Solar panel is 30 Watt and my controller is 5 amps and my battery is 12 volt is that ok. They can make on the electric fun , and 4 bulb of light 1 watts each bulb. They can. How many electricity will load to battery.? Please tell me what to do.?.

[@GalcoIndustrial]

Ok lets start with the rest of the ratings of your solar panel, ok? The 5 amp controller should be fine, and the Battery is 12 volts but what size is it, like a car battery or is like an A23 type?

[@josephnaigan9136]

GalcoTV 12 volts 12 amp sir. is my battery. but I have 6 battery... sir. I make it parallel. so it keep 12 volts. 72 amps.

[@Cotronixco]

Sure it will work, but you will max out your battery charge at 2.5 amps, so it may take awhile to charge depending on the ah rating of the battery/batteries.

[@jeffheyer7783]

Why didn’t you show the settings of the dial???

[@n310ea]

Does watts exist in DC power?

[@GalcoIndustrial]

Of course, and volts times amps is still the magic formula too.

[@georgebounds9256]

@@GalcoIndustrial volts times amps

[@ashugaming6975]

Can we check AC amp with multi meter.

[@GalcoIndustrial]

Usually you can, but it depends on the meter. My Fluke 177 will do AC or DC amps up to 10amps max.

[@ashugaming6975]

GalcoTV thanks

[@wurstofall]

GalcoTV Does the fluke 177 have a time limit for 10 amps? My cheap chinese MM says 15 seconds at 10 amps. I need a better meter than this.

[@BariumCobaltNitrog3n]

AC amps are measured indirectly with a clamp meter, not directly on the wires. The clamp is a circle that opens to form two C shapes, placed around a SINGLE conductor (one hot or one neutral) while the device is in service. The wires are not disconnected like a DC measurement.

[@SSS-nx6xp]

How to measure the volts and amps my laptop draws while its charging and powered off? How to do the same measurements while I'm using the laptop and charging it at the same time? Thanks!

[@BariumCobaltNitrog3n]

A watt meter such as Watt-Stopper will tell you in real time the information you need. Volts will always be what is being supplied by your Utility service (between 110-128 in the US). Plug the device into the wall and plug your laptop charger into that. Attach your laptop and observe it in the two situations you mentioned. You will see displayed Amps or current, and Watts or Power and some will give you the power factor, indicating the efficiency of the system.

[@gotsm9959]

Not expecting what I am looking for! I want a device that automatic registers wattage and factors in farad and omg resistance.

[@BariumCobaltNitrog3n]

funniest typo ever. Oh My God resistance!

[@gotsm9959]

@@BariumCobaltNitrog3n Yeah I have these power stations that malfunction and want to replace the resistors.

[@BariumCobaltNitrog3n]

@@gotsm9959 To measure farads in a capacitor, you need to remove it from the device. If your meter doesn't read capacitance you can use the ohm meter set at the highest level, usually Mohms a good cap will rise steadily to infinity, but a meter that can read capacitance is better. Resistors can be read in the device but are rarely a problem. Capacitors will bulge at the top or leak from the bottom when they fail. Start with the big ones. If you replace them make sure the capacitance and/or voltage is at least the same, a little higher is ok but never lower and always the same type. The cylindrical ones are electrolytic and have polarity, a plus and minus side. A stripe on the cap indicates the minus and will show on the board where it sits as well. Very important to get that right.

[@gotsm9959]

@@BariumCobaltNitrog3n Well all I know is it won't work and is expensive.

[@BariumCobaltNitrog3n]

@@gotsm9959 ok, I don't think there is a device to do what you want automatically. You have to do some testing.

[@wades623]

so you can only measure amps while it is being used?

[@GalcoIndustrial]

Yes, when measuring amperage with a multimeter, you are measuring the amount of current flowing through a circuit. So this measurement is most useful when the component is being operated.

[@johnnabam5436]

+GalcoTV k

[@chrischris3629]

What is a mult high meter ??

[@mangreat71]

How many volts is in a 1000 watts ??

[@rinnin]

Depends on the Amps? (I think)

[@BariumCobaltNitrog3n]

1 Watt = 1 volt x 1 amp. You must know two of these to find the third.

[@pollentra1183]

who else is here for online learning?

[@withmessagesofvirtueiamunt2380]

Great Video!

[@onlygodcreates9500]

Leads? Just a different way of calling wires, correct?

[@slavisatosanovic4595]

Leads are the ends of a cable/wire

[@zahirshah7121]

How to check the serviceability of Transistor through multimeter plz share the tutorial video

[@GalcoIndustrial]

OK Zahir, I'll ask our producers about that type of video. Sounds like a good idea to me.

[@_cloudface_]

Geez, I just wanna know how to test the amps on my car battery that's got 13v but won't work

[@BariumCobaltNitrog3n]

Any auto parts store will test it for free, they have specialized equipment for that.

[@Earzone63]

Why is every galco presenter such a catch ; )

[@Cotronixco]

"Where voltage is supplied, current is drawn." This is false. She should say, "Where voltage is supplied, current is available." Also, current is not slowed by resistance. Just reduced or limited.

[@BariumCobaltNitrog3n]

That is confusing. More light bulbs will draw more current if voltage is unchanged. The measurement is current used or drawn. You can't measure available current. She said the FLOW is slowed not the current. Flow could be seen as watts. Current isn't seen as having speed, but amount. The analogy is a water pipe where voltage is the speed (or force) of the water and current is the size of the pipe or amount of water. She is leaving out a lot of information concerning open or closed systems (power supply with constant voltage vs a battery, AC vs DC, ohm's Law etc.)

[@Cotronixco]

@@BariumCobaltNitrog3n There is no available current without the presence of voltage. Why would you want to measure available current? The fact that it is available doesn't mean you can measure it until there is a load which makes it flow. Current does not flow at all, until there is a load. Current level is determined by EMF (voltage) and conductance across this source. Current flow cannot be slowed. Current flows at the speed of light, regardless of its level at the time.

[@BariumCobaltNitrog3n]

@@Cotronixco You seem to be arguing with yourself. I'm an electrician, I know how it works.

[@BariumCobaltNitrog3n]

@@Cotronixco You're so smart. Here's a cookie.

[@Cotronixco]

@@BariumCobaltNitrog3n I'm an electronics engineer. Anyone who says things like, "Flow could be seen as watts" has no clue about how electricity works. Watts is the measurement of power dissipated in a circuit as the result of conductance placed across an electromotive force. Voltage does not flow. Voltage is a force ACROSS two points. Speed of water flowing through a pipe is not even similar to voltage. Flow is current only. This occurs THROUGH a conductor. It never changes speed. This is basic physics.

[@gajakassagar]

How many Volts,Amps and Ohms are generated in 1000w,1kw?

[@GalcoIndustrial]

Watts is measure of power and equals the voltage time the amps; Example 100volts times 10amps = 1000watts or 1KW. If 100volts yields 10amps then Ohm's Law says we must have 10ohms of resistance too, eh?

[@gajakassagar]

GalcoTV Thanks My Sister,

[@anniegm2]

（翻译自我的英文版评论）也许你可以尝试使用转换适配器。 如果需要从低电压产生高电压，可以使用升压转换器。 这代表了三种基本开关稳压器拓扑结构中的一种，仅需要两个开关、一个电感器以及输入和输出电容器。

[@mmbombafariala7289]

Savoir sa prix

[@HellsingGhrey-ht2wg]

I finally understand! THANK YOU!!!!!!!!!!!!!!!!

[@DEG1985]

Great informative video!

[@thomasflynn642]

what's the ohms setting in meter to check a trigger on a 1979 johnson 115 hp v4? RSVP

[@GalcoIndustrial]

Hello Thomas, it sounds like you are asking about a Johnson outboard bout motor? If so the, I will have to assume the trigger you are asking about is part of the ignition system? A lot of early solid state ignition systems used a trigger coil (an inductive pick up) to trip a master switch (transistorized) and fire the coil. These trigger coils will not be very high resistance, 100 to 1000 ohms maybe. Let us know if this helps.

[@batistafrose6009]

Very nice video

[@josegallardos4265]

Hi, how many watts has an amp? thanks.

[@GalcoIndustrial]

Ok you have to have an AMP and a VOLT then you have 1 watt.

[@adamschoenherr3057]

coulombs are the amount of electrons, the Ampere is the number of coulombs flowing through a circuit per second. this is similar to watts and joules per second. great video!

[@RehanShaikh-vj2kv]

I wanna learn this type of cheking of electronics circuit any one help me please or any institute or collage

[@mathaithomas3642]

Call that girl she can teach you well

[@Woody-777]

Rehan Shaikh Call your local tech school.

[@RobertLongM]

Absolutely amazing! Thank you

[@mac2484]

Which multi meter are u using

[@amarmot3635]

SIDDHANT SHAH Fluke 177

[@bushrapathan8860]

how I can calculate 1m ampere to mili meter

[@GalcoIndustrial]

Divide by 1000

[@paulosyenew2654]

Explains everything.

[@lgg2304]

Did you guys get a look at that True Fluke?! Mmmmm that was hot! 🤣🤣🤣

[@javierferrer4634]

Nice video thank you!

[@GalcoIndustrial]

Glad you liked it

[@JordanDeLarge]

Came for the ohms. But ok

[@jaspernemesio3816]

I don't know if I liked the video because I liked it or because of her 😬

[@paulosyenew2654]

Thanks a lot. This video really helps.

[@rex_schd]

Thank you it was a useful video . And to the scientists and experts in the comments : shut up 😁

[@lynxian-6097]

Kudos for the Video clip! Forgive me for butting in, I am interested in your initial thoughts. Have you considered - Franaar Shining Shape Formula (Sure I saw it on Google)? It is a smashing one off guide for revealing the secret to repair your electronic devices minus the normal expense. Ive heard some incredible things about it and my close friend Aubrey at very last got great results with it.

[@dane5935]

We love this video, very informative.

[@agiewily3199]

Nice video content! Excuse me for chiming in, I am interested in your opinion. Have you ever tried - Franaar Shining Shape Formula (should be on google have a look)? It is a smashing one off product for revealing the secret to repair your electronic devices without the normal expense. Ive heard some decent things about it and my cousin after a lifetime of fighting got cool success with it.

[@Chaudhary-concrete]

Good information

[@johndavid680]

Thanks for information

[@Channel-ki1wn]

She knows her stuff

[@pacificrules]

I retired from a desk job, so this is all new to me. I learned the other day that screwdriver wasn't just a drink I had last night, its also a tool... 😱

[@dharmendergothwal4695]

Thanku so much Galko

[@Kovillenmarday]

Volts, Amps, Watts, and Ohms

[@engineerkohat]

Excellent topic taught by nice chick. Great upload.

[@Mangokyaw]

Lol

[@CAfakmykak]

Who is here because they need to figure out how to accurately measure power draw when doing sub-zero cpu cooling

[@rinnin]

Just you it seems! ;)

[@Razehell42]

This is how informative videos should be!

[@ellooku]

Good teacher.

[@zahirshah7121]

Ello Oku thnx for ur fast response

[@desperateloner8555]

So that was an ad

[@luisjaneiro]

Thank you very much

[@pranabkumardebnath6851]

good teaching.

[@scottborst5430]

I remember when meters actually read wattage what happened to that no stupid math at all😮

[@jcdahippie]

You didn't measure the ohms.

[@tanveerkhan9221]

Test leads connected to multimetre are not that safe they have exposed terminals

[@GalcoIndustrial]

Maybe you need new test leads.

[@tanveerkhan9221]

GalcoTV the leads connected to your multimetre have exposed connectors

[@GalcoIndustrial]

There is nothing wrong with our leads, the only part of them exposed is the tips.

[@HEIN-BO-BO-TINT]

So cute.

[@abdulqadir150]

Nice

[@Tejaye777]

I would love to have a woman like this-Beautiful and smart.

[@augustopolon3795]

very good explanation ....thank you MA'AM Katie Nyberg ......you"re so gorgeous .......

[@jerryhankins367]

5

[@NitishKumar-ul7yv]

Good mem

[@rolandperez7687]

I'm in love..❤

[@johnnydoggs]

Oh yeah

[@ChrisCarson]

This would be better if it was spoken in Spanish.

[@neuro_davinci]

OMG please say multimeter properly, thank you

[@BariumCobaltNitrog3n]

You can't change others. Different is not wrong.

[@newtechnology9274]

Wrong Topic and it's inverse information. Waste of time.

[@darrenlundy8754]

she is so beautifulX

[@paula3582]

a woman, what a joke

[@solution1988]

Repairing rechargeable drill charger . रिचार्जेबल ड्रिल चार्जर की मरम्मत. kzbin.info/www/bejne/fJ3SopaooZp5jJY