What is the primary function of the earth wire in a household electrical circuit?
PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
What is the primary function of the earth wire in a household electrical circuit?
(a) To protect appliances by melting and breaking the circuit when excessive current flows
(b) To maintain a constant supply voltage to the appliance by smoothing out fluctuations
(c) To provide a low–resistance path to ground for leakage current
(d) To return the current from appliances at zero potential during normal operation