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Find the value of R if the power in the circuit is 1000W.(a) 10 ohm(b) 9 ohm(c) 8 ohm(d) 7 ohm |
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Answer» Right answer is (c) 8 ohm Easy explanation: To find the value of I: VI=P =>100I=1000 => I=10A. Voltage across the 2 ohm resistor = 20V. Voltage across the R resistor = 100-20= 80V. R=V/I => R=80/10 = 8A. |
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