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n identical bulbs operating on same volt...

n identical bulbs operating on same voltage are available. When all such bulbs are connected in series to the same operating voltage source, then power consumed in each bulb = ...... W.

A

nP

B

P

C

`(P)/(n)`

D

`(P)/(n^(2))`

Text Solution

Verified by Experts

The correct Answer is:
C

`(P)/(n)`
The resistance of every bulb R = `(V^(2))/(P)`
The total resistance joined in series of n bulb
R. = nR = `(nV^(2))/(P)`
`therefore `Total Power P. = `(V^(2))/(R.) = (V^(2) xx P)/(nV^(2)) = (P)/(n)`
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