The network shown in figure is a part of the circuit. (The battery has negligible resistance)

At a certain instant the current I = 5A and is decreasing at a rate of `10^3 As^(-1)`. What is the potential difference between point B and A ?

Options

A. 500 V
B. 10 V
C. 0 V
D. none of these

Answer

D

Explanation

none of these
Given circuit is of voltage regulated power supply So if the current passing through `R_(s)` change the same as the change in p.d. between its two ends, same change will be in input supply voltage, but the p.d. between the two ends of `R_(L)` will not change means remain constant.