Why does the current not rise immediately in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The voltage across an inductor is given by $V = L \frac{di}{dt}$.When there is a change in current,the inductor opposes this change by generating

Vedclass · Accepted Answer

Because of induced emf

Vedclass · Answer

(A) The voltage across an inductor is given by $V = L \frac{di}{dt}$.When there is a change in current,the inductor opposes this change by generating an induced electromotive force (emf) according to Lenz's Law.If the current were to rise immediately,the rate of change of current $\frac{di}{dt}$ would be infinite,which would require an infinite induced emf.Since the circuit cannot support an infinite emf,the current rises gradually,following an exponential growth curve until it reaches its steady-state value.

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

Similar Questions

Which of the following is not a unit of inductance?

An average induced $e.m.f.$ of $1\,V$ appears in a coil when the current in it is changed from $10\,A$ in one direction to $10\,A$ in the opposite direction in $0.5\,s$. The self-inductance of the coil is.....$mH$.

The self-inductance of an air-cored solenoid of length $40 \ cm$,diameter $7 \ cm$ having $200$ turns is nearly: (in $\mu H$)

The $SI$ unit of self-inductance is:

$A$ coil having an inductance of $0.5\, H$ carries a current which is uniformly varying from zero to $10\, A$ in $2\, s$. The $e.m.f.$ (in volts) generated in the coil is

Vedclass Test Series

Exam Paper Generator

Online Exam Module