Assertion (A): It is more difficult to push a | vedclass

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(B) According to Faraday's law,the induced $emf$ $(\varepsilon)$ in a coil is given by $\varepsilon = -N \frac{d\phi}{dt}$,where $N$ is the number of

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Both $A$ and $R$ are true. $R$ is the correct explanation of $A$

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(B) According to Faraday's law,the induced $emf$ $(\varepsilon)$ in a coil is given by $\varepsilon = -N \frac{d\phi}{dt}$,where $N$ is the number of turns.As the number of turns $(N)$ increases,the induced $emf$ and consequently the induced current increase for a given rate of change of magnetic flux.According to Lenz's law,the direction of the induced current is such that it opposes the cause that produces it,which is the motion of the magnet.Since a larger $N$ results in a stronger induced current,the opposing magnetic force becomes greater,making it more difficult to push the magnet into the coil.Thus,both $A$ and $R$ are true,and $R$ is the correct explanation of $A$.

Assertion $(A)$: It is more difficult to push a magnet into a coil with a greater number of turns.
Reason $(R)$: The $emf$ induced in a coil opposes the motion of a magnet when it is moved towards the coil.

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Assertion $(A)$: It is more difficult to push a magnet into a coil with a greater number of turns.Reason $(R)$: The $emf$ induced in a coil opposes the motion of a magnet when it is moved towards the coil.