PHYSICS · Single correct · CBSE · Physics · Electricity: Magnetic and Heating Effects · Electricity: Magnetic and Heating Effects
Problem
Two identical metal toasters, X and Y, are connected to a 220V domestic circuit through separate 5 A fuses placed in their live wires. The earth connection of X is intact, but the earth wire of Y is accidentally disconnected. During operation, the live wire inside each toaster touches its metal casing. Which statement correctly describes the likely outcome?
(a) The fuses in both X and Y blow, so neither toaster can give an electric shock.
(b) The fuse blows in X only; Y keeps working safely because without an earth wire there is no return path for current.
(c) The fuse blows in X only; Y’s casing becomes live and can give an electric shock if touched.
(d) No fuse blows; X is safe due to earthing and Y is also safe provided nobody completes a path to earth.