Physics · Alternating Current
An LCR series AC circuit is at resonance with 10 V potential difference each across L, C, and R. If the resistance R is halved while keeping the supply voltage constant, the respective voltages across R, C, and L become:
- 15 V, 10 V, 10 V
- 210 V, 5 V, 5 V
- 35 V, 5 V, 5 V
- 410 V, 20 V, 20 V✓
Correct answer
10 V, 20 V, 20 V
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