A Level Physics Revision: All of Potential Dividers (in 17 minutes)

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ZPhysics

Күн бұрын

Пікірлер: 40

@eshanbanerjee243 2 жыл бұрын

Absolutely love your channel, you make revision so easy! Thank you!

@zhelyo_physics 2 жыл бұрын

Thank you so much!

@Dan-pi6dx 2 жыл бұрын

forgot this topic even existed

@papiharpy7547 2 жыл бұрын

And sadly it came up ;-;

@pinkyblueAPefc Жыл бұрын

7 weeks until my exam. I thank you for having a video on one of the topics I hate the most

@zhelyo_physics Жыл бұрын

anytime! Hope this helps!

@kieran4149 2 ай бұрын

Your videos make revision so much more enjoyable and I am able to cover everything in a fraction of the time, thanks so much.

@zhelyo_physics 2 ай бұрын

Thank you so much for the comment! Great to hear!

@christohargreaves5234 2 жыл бұрын

thank you very much its clicked in my head now 😂

@zhelyo_physics 2 жыл бұрын

Glad to hear!

@AB-nf8li 7 ай бұрын

for the LDR example, the current across the LDR has also reduced. So shouldn't the voltage drop across the LDR, due to V = IR?

@zhelyo_physics 7 ай бұрын

excellent question, while I has dropped, R has increased at a faster rate. We originally don't know which has increased at a faster rate and can only find out via the p.d. across the fixed resistor. Hope this is helpful!

@AB-nf8li 7 ай бұрын

Ah ok that makes sense. Thank you so much sir!

@diabolicmaven6906 2 жыл бұрын

Absolute legend!

@zhelyo_physics 2 жыл бұрын

Thanks!

@basimajawaid9447 11 ай бұрын

the best revision video ever !!

@zhelyo_physics 11 ай бұрын

thanks!! : )

@notoriouscookie7066 6 ай бұрын

Your channel is phenomenal.

@zhelyo_physics 6 ай бұрын

Thank you so much! Very much appreciated!

@YD-md8ly 2 жыл бұрын

helped a lot. thank you 👍

@zhelyo_physics 2 жыл бұрын

Glad to hear! Thanks! : )

@boboom4657 2 жыл бұрын

Legendary

@zhelyo_physics 2 жыл бұрын

Thanks! : ))

@papiharpy7547 2 жыл бұрын

Where were you when I first started a level 😭😭😭

@teacupcakes2739 Жыл бұрын

17:20 Should i put my thermistor circuit in the oven to test this out?

@zhelyo_physics Жыл бұрын

thought experiment only : )

@GamerxShorts 2 жыл бұрын

Thank. You so much sir

@zhelyo_physics 2 жыл бұрын

Most welcome! Glad it was helpful!

@Qweeeeegame 11 ай бұрын

12:28 Hello sir, hope you are doing well, why does the current decrease? Never mind I found out 😅 Thank you for your videos

@zhelyo_physics 11 ай бұрын

ahah amazing! well done! Thank you for the comment!

@ishaand6370 11 ай бұрын

@@zhelyo_physicshello sir, does current decrease because the resistance of the circuit as a whole increases? If light intensity decreases, resistance of the LDR increases HENCE using R1 + R2, the total resistance of the circuit increases hence current decreases? Is that the correct explanation?

@abrarmansur3666 2 жыл бұрын

thank you so much

@zhelyo_physics 2 жыл бұрын

You're welcome! Glad this is useful!

@Falcon5706 11 ай бұрын

Hi wanted to ask how does the answer change if the voltmeter is over the fixed resistor rather than the LDR or thermistor?

@zhelyo_physics 11 ай бұрын

so V=IR, R means fixed as it's over the fixed resistor, so whatever the current is doing, the voltage is doing across the fixed resistor. Hope this helps!

@Falcon5706 11 ай бұрын

@@zhelyo_physics ah much appreciated, what if the voltmeter was over a variable resistor and the resistance of it was increased, but say the light intensity was kept constant for example?