A capacitor is connected directly across the mains
PHYSICS · Multi-part · Fermi University Physics · Electricity, Magnetism & Electromagnetism · Electromagnetic induction and alternating-current circuits · Electromagnetic induction and alternating-current circuits
Electricity, Magnetism and Electromagnetism, Ch AC circuits: phasors, complex impedance, resonance and power
Problem
A 10μF capacitor is connected directly across the mains, 230V rms at 50.0Hz. Take the capacitor as ideal (no leakage and no series resistance) and the supply as an ideal sinusoidal source.
((a)) Find the rms current in the capacitor.
((b)) Find the mean power taken from the supply by the capacitor.
((c)) Find the greatest energy stored in the capacitor during a cycle.