A room heater is rated 1150 W, 230 V and protected by a 6 A fuse

PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity

Problem

A room heater is rated 1150 W, 230 V and protected by a 6 A fuse. During a voltage dip the mains fall to 200 V. Which statement correctly predicts what will happen? (a) The current rises to about 5.75 A5.75\,\text{A} and the fuse will blow. (b) The current remains exactly 5 A5\,\text{A} and the fuse will remain intact. (c) The current falls to about 4.35 A4.35\,\text{A} and the fuse will remain intact. (d) The current falls below 6 A6\,\text{A} yet the fuse will still melt.

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