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A 220 volt, 1000 watt bulb is connected ...

A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be

A

`750` watt

B

`500` watt

C

`250` watt

D

`1000` watt

Text Solution

Verified by Experts

The correct Answer is:
C
`R=(V^(2))/(P)=((220)^(2))/(1000)`
Where `V` and `P` are denoting rated voltage and power respectively.
`P_("consumed")=(V^(2))/R=(110xx110)/(220xx220)xx1000=250` watt
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