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A 100 W 200 V bulb is connected to a 160...

A `100 W 200 V` bulb is connected to a `160 V` power supply. The power consumption would be

A

64 W

B

80 W

C

100 W

D

125 W

Text Solution

Verified by Experts

The correct Answer is:
A
`R_(b)=(V_(b)^(2))/(P)=(200xx200)/(100)=400Omega`
`I=(e)/(R)=(160)/(400)=0.4A`
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