A circuit’s fuse is rated for 5 A. At most how many 100 W, 220 V bulbs can be sa

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1. A circuit’s fuse is rated for 5 A. At most how many 100 W, 220 V bulbs can be safely run in parallel on this circuit?

20

15

11

10

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Each bulb draws about 100 ÷ 220 ≈ 0.4545 A. Dividing the fuse’s 5 A rating by this per-bulb current allows a maximum of 11 bulbs without exceeding the rating.