A steady current is passing through a coil, magnitude of self- induced emf in it,will be:A. zero ⃝ B. maximum
Question
Solution
The answer is A. Zero.
Here's why:
Self-induced emf (electromotive force) in a coil, also known as self-induction, is a property of circuits where a change in current causes a change in magnetic field, which in turn induces an emf.
However, in this case, the problem states that a steady current is passing through the coil. A steady current means that the current is constant, it's not changing with time.
Since the current is not changing, the magnetic field it produces is also not changing. And if the magnetic field is not changing, it cannot induce an emf in the coil.
Therefore, the magnitude of the self-induced emf in this case is zero.
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