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Asked by adjacentcalliber10 | 25 Jul, 2019, 12:46: PM
Expert Answer
If Power dissipation is 250 W from 50 V battery, current drawn = 250 W/50 V = 5 A
Effective resistance = 50 V/5 A = 10Ω
since R4 is 3Ω, resistors combination of R1, R2 and R3 is 7 Ω
i.e. (8×R3)/(8+R3) = 7Ω or R3 = 56Ω
Answered by Thiyagarajan K | 25 Jul, 2019, 02:17: PM
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