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The output of a step down transformer is...

The output of a step down transformer is measured to be `48V` when connected to a `12W` bulb. The value of peak current is

A

`(1)/(sqrt2 A)`

B

`sqrt2 A`

C

`2 A`

D

`2 sqrt2 A`

Text Solution

Verified by Experts

The correct Answer is:
C
`(1)/(sqrt2) A`
`l _(S) = ( P _(S))/(V _(S)) = (12)/(24) = 0.5 A`
` l _(m) = sqrt2 l _(S)`
`= sqrt2 xx0.5 = (1)/(sqrt2)A.`
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