A light bulb is rated at 100 W for a 500 V supply. Find the RMS current through the bulb.

If the peak value of a sinusoidal AC voltage wave is 141 V, what is its root mean square (RMS) value?

A bulb of resistance 280 Ω is supplied with an alternating voltage V = 400 sin(πt). The peak current flowing through the bulb is approximately:

An AC source of 15 V, 50 Hz is connected across an inductor (L) and resistance (R) in series, causing an RMS current of 0.5 A to flow. If the phase difference between the applied voltage and current is π3 radians, what is the resistance R? (given tan 60° = √3)

A charged 10 μF capacitor is connected to a 16 mH inductor. What is the angular frequency of free oscillations of the LC circuit?

A transformer has Np = 2000 turns in the primary winding and Ns = 100 turns in the secondary winding. It is connected to an AC source of Vp = 220 V. If the secondary current is Is = 5 A and energy losses are negligible, what is the primary current Ip?

The RMS value of the resultant current in a wire which carries a DC current of 5 A, a sinusoidal alternating current of peak value 10√2 A at 50 Hz, and another sinusoidal alternating current of peak value 10√2 A at 150 Hz is:

For a series LCR circuit connected to a 220 V, 50 Hz A.C. source, if the power factor is α10, where the calculated power factor is 0.6, then the value of α is:

A series RLC circuit has resistance R = 10 Ω, inductance L = 2 H, and capacitance C = 14 μF connected across a 100 V, 50 Hz AC supply. Taking π = 227, calculate the capacitive reactance XC.