A small workshop receives 230 V mains through a single fuse in the live wire before…

PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current

Problem

A small workshop receives 230 V mains through a single fuse in the live wire before the wiring splits into two branches. One branch feeds four identical lamps rated 60 W each (connected in parallel), and the other feeds a drilling machine rated 920 W. Which fuse rating is most appropriate to safeguard the installation without unnecessary blowing during normal operation? (a) 3 A3\,\text{A} (b) 10 A10\,\text{A} (c) 6 A6\,\text{A} (d) 5 A5\,\text{A}

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