MCQ
Why the current does not rise immediately in a circuit containing inductance
- ✓Because of induced emf
- BBecause of high voltage drop
- CBecause of low power consumption
- DBecause of Joule heating
✓
Answer
Correct option: A.
Because of induced emf
a
(a) $V=L \frac{d i}{d t}$
(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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