If in the circuit, power dissipation is 150W, the R is A. `2 Omega`B. `6 Omega`C. `5 Omega`D. `4 Omega`

If in the circuit, power dissipation is 150W, the R is A. `2 Omega`B.

1.	If in the circuit, power dissipation is 150W, the R is A. `2 Omega`B. `6 Omega`C. `5 Omega`D. `4 Omega`
Answer» Correct Answer - B (b) The equivalent resistance is `R_(eq) = (2xxR)/(2+R)` `:. Power dissipation P = V^2/R_(eq)` `:. 15 0 = (15 xx 15)/R_(eq) :. R_(eq) = 15/10 = 3/2` `rArr (2R)/(2+R) = 3/2 rArr 4R = 6+3R rArr R = 6 Omega`.

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If in the circuit, power dissipation is 150W, the R is A. `2 Omega`B. `6 Omega`C. `5 Omega`D. `4 Omega`

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