The rate of charge of current is 500 A/s at the instant key is pressed in the circuit shown in the figure. The current through the circuit is

Options

A. 0.5 A
B. 2 A
C. 1A
D. 3.5 A

Answer

C

Explanation

`I=(E-e)/(R)`
`I=(E-L(dI)/(dt))/(R)=(60-10xx10^(-3)xx500)/(55)=1A`