A table lamp is mistakenly connected between the live wire and the earth wire instead…
PHYSICS · Multi-part · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
A 60W table lamp is mistakenly connected between the live wire and the earth wire instead of between the live and neutral wires.
(i) What potential difference will act across the lamp under this faulty connection? Give a reason for your answer.
(ii) State whether the lamp will glow with normal brightness, dimly, or not at all. Explain.
(iii) Discuss one safety hazard that can arise from allowing operating current to return through the earth wire in this manner.