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How many hours must a 200 W bulb glow to...

How many hours must a 200 W bulb glow to con-sume 1 unit electrical energy.

A

1

B

2

C

5

D

10

Text Solution

Verified by Experts

The correct Answer is:
C
1 unit = 1 kilowatt hour = 1000 watt hour. 200 W bulb working for 5 hours consumes, 1 kilo watt hour.
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