Why the current does not rise immediately in a circuit containing… - Vidyadip

MCQ

Why the current does not rise immediately in a circuit containing inductance

✓
Because of induced emf
B
Because of high voltage drop
C
Because of low power consumption
D
Because of Joule heating

✓

Answer

Correct option: A.

Because of induced emf

a
(a) $V=L \frac{d i}{d t}$

If we have a sudden rise in current, $\frac{d i}{d t}$ will be high, which gives high voltage drop across the inductor.

High voltage drop is not possible, therefore, current rises slowly in an inductor.

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