An inductor L = 0.0345 H and a 30.5 Ω resistor are connected in series to a 3.20 volt battery and a switch. At t = 0 the switch is closed to complete the circuit. (a) What is the potential difference across the resistor immediately after the switch is closed?

0 V

Explanation:

given,

Inductance = L = 0.0345 H

resistor of resistance = R = 30.5 Ω

connected in series with battery of voltage = 3.20 V

at t = 0 switch is closed

potential difference when switch is closed = ?

The potential difference when the switch is just closed across the resistor will be equal to Zero.

Because at t = 0 the capacitor will act as a short circuit.

hence, the potential will be 0 V