Power dissipated in an LCR series circuit connected to an a.c. source of emf ε is
- Aε²R / √[R² + (Lω - 1/Cω)²]
- Bε²R / [R² + (Lω - 1/Cω)²]
- Cε²√[R² + (Lω - 1/Cω)²] / R
- Dε²[R² + (Lω - 1/Cω)²] / R
✓ Correct answer: B
Want the full step-by-step reasoning?