Question

The wattage of an electric bulb is W and resistance of its filament is r. if it is connected to a voltage v. the current in its i. the correct relation of these :- A) v2=w2R. B) v=w2R. C) i=root over R/W
D) v=root over WR.

Answer 1

Hey dear,
The correct relation for the wattage of an electric bulb is W and resistance of it's filament is R. If it is connected to a voltage V,the current is I.
ANSWER=>V=root over WR
perfectly definitely pure correct answer.
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Answer 2

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