What is electromagnetic induction?
(N/A) Electromagnetic induction is the phenomenon of generating an electromotive force $(EMF)$ or current in a conductor by changing the magnetic flux linked with it.
According to Faraday's law,the magnitude of the induced $EMF$ is equal to the rate of change of magnetic flux through the circuit,given by $\varepsilon = -\frac{d\Phi_B}{dt}$.
This phenomenon is the fundamental principle behind the operation of electric generators,transformers,and induction motors.
According to Faraday's law,the magnitude of the induced $EMF$ is equal to the rate of change of magnetic flux through the circuit,given by $\varepsilon = -\frac{d\Phi_B}{dt}$.
This phenomenon is the fundamental principle behind the operation of electric generators,transformers,and induction motors.
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Medium
View Solution$A$ long solenoid with $15$ turns per $cm$ has a small loop of area $2.0 \,cm^2$ placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from $2.0 \,A$ to $4.0 \,A$ in $0.1 \,s$, the induced emf in the loop while the current is changing is nearly [Take $\pi=3.14$].
DifficultMHT CET 2022
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