Question

The mains power supply of a house is through a 20A fuse. When a 1500 W heater is used in this house, how many 100 W bulbs can be used simultaneously? (The supply is at 220 V and the appliances are rated for 220V A.35      B. 29     C. 30    D.19​

Answer 1

Answer:

B

Explanation:

Answer 2

Answer:

B.

main =20 A

supply =220 A

main supply=20×220=4400 W

heater use 1500 W

light =4400-1500=2900 W

So , 29 bulbs

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