Mathematics · Alternating Current
When an inductor L and a resistor R in series are connected across a 15 V, 50 Hz a.c. supply, a current of 0.3 A flows in the circuit. If the current differs in phase from the applied voltage by π3 rad, find the value of R. Given that cos(π3) = 12.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 125 Ω✓
- 220 Ω
- 315 Ω
- 410 Ω
Correct answer
25 Ω
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