Question

A 60 μF capacitor is connected to a 110 V, 60 Hz ac supply. Determine the rms value of the current in the circuit.

Answer 1

Capacitance of capacitor, C = 60 μF = 60 × 10⁻⁶ F

Supply voltage, V = 110 V
Frequency, ν = 60 Hz
Angular frequency, ω = 2πν
Capacitive reactance,

rms value of current is given as:

Hence, the rms value of current is 2.49 A.