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If in the circuit, power dissipation is ...

If in the circuit, power dissipation is 150 W, then R is :

A

`2 Omega`

B

`6 Omega`

C

`5 Omega`

D

`4 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`150 = 15^(2)/2 + 15^(2)/R`
`rArr 10 = (15(2 + R))/(2R) rArr 20R = 30 + 15R`
`rArr R = 6 Omega`
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