In a dc motor, induced e.m.f. will be maximum | vedclass

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(A) In a $dc$ motor, the induced $e.m.f.$ (also known as back $e.m.f.$) is given by the formula $e = \frac{P \phi Z N}{60 A}$.Here, $P$ is the number

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When motor takes maximum speed

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(A) In a $dc$ motor, the induced $e.m.f.$ (also known as back $e.m.f.$) is given by the formula $e = \frac{P \phi Z N}{60 A}$.Here, $P$ is the number of poles, $\phi$ is the magnetic flux per pole, $Z$ is the number of conductors, $N$ is the speed of the motor in $rpm$, and $A$ is the number of parallel paths.Since $e \propto N$, the induced $e.m.f.$ is directly proportional to the speed of the motor.Therefore, the induced $e.m.f.$ will be maximum when the motor reaches its maximum speed.

In a $dc$ motor, induced $e.m.f.$ will be maximum:

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