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R and C are connected in parallel across a sinusoidal voltage source of 240 V. If the currents through the source and the capacitor are 5A and 4A, respectively; what is the value of R?
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- 24Ω
- 48Ω
- 80Ω
- 240Ω
Correct Option: C
Given R and C are connected in parallel across a sinusoidal voltage source of 240V.
IR = √Is2 − IC2
IR = √(5)2 − (4)2 = 3A
| R = | = | = 80 Ω | ||
| IR | 3 |
