A 250V bulb passes a current of 0.3A. Ca...

A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.

75W

50W

25W

100W

Text Solution

Verified by Experts

The correct Answer is:

Angular momentum at point A
`L_(A)=P_(A).d`
Angular momentum at point B
`L_(B)=P_(B).d`
where `P_(A)andP_(B)` are the linear momentum at points A and B
Now, the linear momentum of particle is constant `therefore P_(A)=P_(B)`
`therefore L_(A)=L_(B)`

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