An L-R circuit has a cell of e.m.f. E , which is switched on at time t = 0. The current in the circuit after a long time will be

Options

A. zero
B. `(E)/(R)`
C. `(E)/(L)`
D. `(E)/(sqrt(L^(2)+R^(2)))`

Answer

B

Explanation

In case of growth of current in a L-R circuit, the current in the circuit grows exponentially with time 0 to the maximum value at, `i_(0)=E//R`.