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The ratio of power dissipated respective...

The ratio of power dissipated respectively in `R` and `3R`, as shown is:

A

`9`

B

`27//4`

C

`4//9`

D

`4//27`

Text Solution

Verified by Experts

The correct Answer is:
D

`I_(R)=(2R)/(3R)xxI=(2I)/3 & H=I^(2)R`
`(H_(R))/(H_(3R))=((I_(R))/(I_(3R)))^(2)xxR/(3R)=(2/3)^(2)xx1/3=4/27`
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