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Back EMF in Motors | electromagnetic induction 10 | chapter14 class 12 physics Federal and kpk board


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Source channel: candle academy pakistan

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Description

welcome to candle academy Pakistan. this is lecture 10 of chapter 14 electromagnetic induction for class 12 physics Federal and kpk board. in this lecture back EMF explained.

after completing this lecture students will be able to explain the following.

01:08difference between motor and generators.

06:29 what is back EMF in motors?calculation of back EMF,
how does back EMF make the motor self-regulating? describe the current flowing through the motor under the effect of back EMF.

12:49 explain different cases back EMF changes the magnitude of current through the coil.

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