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In the above figure, consider the circuit sketched

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Answer #1

Req = (R1+R2)*R3/(R1 + R2 + R3) + R4 = (14+21)*21/(14+21+21) + 14 = 27.125 ohm

I = V/Req = 80/27.125 = 2.9493 A

Power in R4 = I2R4 = (2.9493)^2*14 = 121.77719 Watt

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In the above figure, consider the circuit sketched. The battery has emf epsilon = 80 volts...
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