A table lamp has its switch connected in one of the supply wires
PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
A table lamp has its switch connected in one of the supply wires. If the live and neutral wires are interchanged at the plug, which statement is correct when the switch is in the OFF position?
(a) The lamp is completely isolated from the supply and perfectly safe to handle
(b) The lamp glows dimly because only half the voltage is applied
(c) The lamp is off but its internal circuit remains at high potential, posing a shock risk
(d) Current continues to flow, so the lamp remains fully lit