1.

The element of a heater is rated (P, V). If it is connected across a source of voltage V/2, then thepower consumed by it will be

Answer»

P
2P
`P/2`
`P/4`

Solution :(d) `P/4` [HINT : Resistance of heater ELEMENT `R=(V^(2))/P`. For voltagen`V/2`, the POWER consumed `P.=((V//2)^(2))/R=(V^(2))/(4R)=P/4`]


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