Question

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

Answer 1

Given C = 60µF = 60 × 10^-6 F, E_v = 110V, ν = 60 Hz. Since I_v = \(\frac{E_v}{x_c}\)

∴ I_ν = ωCE_ν

= 2pνCE_ν = 2 × 3.142 × 60 × 60 × 10^-6 × 110

= 2.49A  or

I_ν = 2.49V.