XII-14-4 Rectifier (2015)Pradeep Kshetrapal Physics

[@AbContentt]

This lecture deserves At least One Million views.❤❤❤

[@shashigupta4385]

Sir u are great! You are the only reason that I scored 92 marks out of 100 in phy in my 12th boards. You made my life beautiful. You make topics so understandable and beautiful! It create love for phy in students like us. Sir, never ever in my life I have seen such a dedicated teacher ( of phy) like u

[@meenakshidubey4957]

Wonderful explanation

[@tirthparmar1645]

One of the most dangerous topic I have ever seen..... Thank you Sir.....

[@Shubham_pandey-nk1un]

Excellent Video

[@amnaqureshi5958]

Excellent explanation.

[@HARE_RAM002]

ultimate vedio, many many respected regards for you sir.

[@lathapurushotham6345]

please give a detailed explanation for zeiner diode in your 2015 video taking some example .

[@kindaeasy9797]

I wish i had such physics teacher

[@tanaykumar3493]

Sir, Please help. In the last lecture, you told that in forward bias, the initial current is zero up to a certain voltage and then increases. The example which you gave in the last lecture, the current was zero till the applied voltage was less than 0.6 V. Suppose if we want to create a rectifier with output voltage of 0.4 V then what will be done because the diode will not allow current to pass, and hence the output voltage will be zero.

[@aryaman5106]

brother the cut in voltage is different for different semiconductor device in general we consider is at 0.6 volt ...but if u want to rectify 0.4 volt Ac u will used germanium semiconductor which has 0.2V cut in voltage ....then it will easily rectified your Ac input to DC ....thank u 😉

[@manojdixit8699]

Sir your videos is helpful for me and thanks for videos

[@adityanayak4237]

sir, can please post all the videos of all the topics pertaining to this chapter I.e semiconductor

[@drabhishekparihar]

sir what is the role of high resistance in parallel to capacitor

[@Musicsoundsbetterwithyou17]

Sir in your explanation you had previously told that if a capacitor is given a dc current it allows it and charge is stored whereas in the full wave rectifier when you introduce the capacitor you told that capacitor blocks the dc current and allows AC to pass through it? Please correct if I am wrong. Thanks for providing such amazing lectures a very helpful source for studying for students studying abroad as good tuition's are not available and this saves time and money both I really thank you once again.

[@aryaman5106]

since capacitive reactance is 1/wc and frequency of DC is zero ..thus a capacitor gives infinite resistance to circuit and block the flow ..but in AC it will charge and uncharge and current will pass through it......

[@bipulbhargava8603]

thanks sir for such a easy elaboration

[@SpecialMathsClasses]

Sir u r always excellent....

[@rahulray8819]

Sir,Please upload the efficiency of full wave and half wave rectifier.

[@samuelfrank9947]

Will there be a change in magnitude of the voltage when it is converted from AC to DC please explain me sir

[@HARE_RAM002]

first time i saw you in you tube.

[@maahi1768]

👍

[@ashwanijoshi5298]

god bleess u sir

[@abusayemmohammadsakib2035]

THANKS A LOT..................

[@bheeshamkhatri4541]

sir mercury mn conduction hota ha ya convection...... sir plzzz explain......

[@bheeshamkhatri4541]

sir u r saying tht conduction takes place..... but I m very confuse ..... how?.... sir mn ne apke hi lecture mn dekha tha k ..... liquid mn convection aur solid mn conduction hota ha.... so plzzz ..sirrrr...... I m requesting u to clear me this ..... plzzzz ...... mercury bhi to liquid ha us mn conduction ...... kese ? plzzz clear krdein sirrr .......

[@bheeshamkhatri4541]

thnk u sir.....

[@dhawalphophaliya2512]

sir is capacitor allows dc or ac .please explain me sir...

[@aalishanhafeez2691]

A capacitor is a short circuit for AC i.e capacitor allows AC.

[@aryaman5106]

since capacitive reactance is 1/wc and frequency of DC is zero ..thus a capacitor gives infinite resistance to circuit and block the flow ..but in AC it will charge and uncharge and current will pass through it......

[@samuelfrank9947]

Sir why should the current stop flowing from the capacitor as because AC is continuously flowing and changing is direction and there are two diodes so the capacitor will have the flow of charge continuously so we can obtain a continuous line when we add filter in full wave rectifier

[@aryaman5106]

since capacitive reactance is 1/wc and frequency of DC is zero ..thus a capacitor gives infinite resistance to circuit and block the flow ..but in AC it will charge and uncharge and current will pass through it......

[@satyapalchauhan9475]

thanx sir

[@abhijitburagohain9704]

sir i am unable to understood the concept of why we take second half of cycle B is+ve....

[@ishvarlalishvarlal3120]

Sir c se to ac current hi jayega to phir

[@vickyvm6]

mr moshin, capacitor blocks dc current whereas inductor blocks ac current. since the dc has zero frequency ang get blocked by capictor and the capictor get discharged during negative half cycles of full wave rectifier. and hence maintain the current throught the cycle.

[@ishvarlalishvarlal3120]

Sir transformer step-down or step-up

[@ghanshyamagarwal1055]

Step up

[@siddhijoshi8759]

sir in 23:00 you said d2 is reversed biased ..so according to this the p junction should be negetive and you hve given a positive sign to it . sir please please answer

[@ojasmalhotra1316]

sir why does capacitor allows ac current?

[@animalrightsmfa9977]

Rishabh Malhotra caz in dc it becomes infinte

[@aryaman5106]

since capacitive reactance is 1/wc and frequency of DC is zero ..thus a capacitor gives infinite resistance to circuit and block the flow ..but in AC it will charge and uncharge and current will pass through it......

[@satyamtripathi7736]

🙏🙏🙏

[@deoumang9402]

Oeh grignard reagent

[@AmritpalSingh-jp2cv]

Sir why high resistance is needed with capacitor?

[@murtazabohra5388]

Amritpal Singh so that ac current flows through the capacitor..if we do not add the high resistance,ac current might flow in the forward direction and hence will not reach the point N.Secondly we will not be able to filter because ac as well as DC both will reach the end point The path taken by the current is of least resistance.

[@AmritpalSingh-jp2cv]

thanks bro/sis for replying and clerifying my doubts.

[@pravendradwivedi973]

sir ,i m sunidhi. at 6:36 you said that whatever we need the voltage we can make it.but how we can do that i m not getting plzz explain it

[@aryaman5106]

through transformer u can convert low voltage to any high voltage current

[@ankitavarshney5906]

sir i think u made mistake in diagram of rectifier , that is no of turns in secondary circuit is less than the no of turns in primary circuit to be used a step down transformer

[@aryaman5106]

ya ...but is will be rough diagram u must go through ncert before watching this ...thank u

[@inclinedscorpio]

sir capacitor ke sath high resistance, kyun?

[@salahuddin3659]

To decrease current flow through capacitor.and make parallel combination

[@inclinedscorpio]

@@salahuddin3659 I completed my B.Tech Elon. How can someone be so busy making space rockets 😑

[@salahuddin3659]

@@inclinedscorpio sorry Bhai,I don't know about you,I seeing lecture and I found your comment and just replied what I understand.

[@inclinedscorpio]

@@salahuddin3659 it's ok Elon. In return I want spaceX journey to space for free.

[@salahuddin3659]

@@inclinedscorpio sure,but when I will become CEO of spacex

[@varadcairae]

I am unable to understand the concept of positive and negative current

[@ishvarlalishvarlal3120]

Or both

[@ghanshyamagarwal1055]

High resistance ka kya kam h

[@salahuddin3659]

To make parallel combination.and reduce current flow through capacitor,as well as avoid flow through resistor.

[@anummari745]

Sir in your explanation you previously told that if a capacitor is given a dc current it allows it and charge is stored whereas in the full wave rectifier when you introduce the capacitor you told that capacitor blocks the dc current and allows AC to pass through it? sir can you please clarify.....

[@aryaman5106]

@@PradeepKshetrapal yes sir u right...since capacitive reactance is 1/wc and frequency of DC is zero ..thus a capacitor gives infinite resistance to circuit and block the flow ..but in AC it will charge and uncharge and current will pass through it......

[@AR-zm6jr]

Sir please explain in Hindi it's better to understand....