Question

a house is served by 220V supply in a circuit protected by 9A fuse . The maximum number of 60W lamps in parallel that can be turned on are.

Answer 1

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Answer 2

Answer:

The maximum number of 60W lamps in parallel that can be turned on are 33.

Explanation:

Lamps= 60W

Voltage=220V

Fuse= 9A

If lamp is parallel its voltage is same

Power =VI

I=60/220A

Amount of current required in single lamp= .27 A

Assume n number of lamp is required

                                                   So, nI= 9A

                                                         n =9/,27

                                                          n= 33

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