The primary and the secondary coils of a tran | vedclass

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(C) transformer works on the principle of electromagnetic induction, which requires a time-varying magnetic flux to induce an electromotive force $(EM

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(C) transformer works on the principle of electromagnetic induction, which requires a time-varying magnetic flux to induce an electromotive force $(EMF)$ in the secondary coil.The primary coil is connected to a battery, which provides a constant direct current $(DC)$ voltage of $1.5 \, V$.Since the current is constant, the magnetic flux linked with the primary coil remains constant.Because the magnetic flux does not change with time, there is no change in the magnetic flux linked with the secondary coil $(\frac{d\Phi}{dt} = 0)$.According to Faraday's law of induction, the induced $EMF$ in the secondary coil is given by $e = -N \frac{d\Phi}{dt}$. Since $\frac{d\Phi}{dt} = 0$, the induced voltage across the secondary coil is $0 \, V$.

The primary and the secondary coils of a transformer contain $10$ and $100$ turns, respectively. The primary coil is connected to a battery that supplies a constant voltage of $1.5 \, V$. The voltage across the secondary coil is .................. $V$.

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