Question

Find the value of unknown resistor r which is in parallel with 2 ohm resistor if the power dissipation is 150 watt and voltage applied is 15 volts.

Answer 1

Explanation:

150 W = V² / Req

150 = 225 / Req

2 = 3 / Req ................(1)

Req = 1/2 + 1/r = 2r /2+r ...............(2)

from equation (1) and (2) ,

r = 6 ohm

.

.

please mark this answer as the brainliest if it was helpful.