Question

In a series resonant circuit, the ac voltage across resistance R, inductance L and capacitance C are 5 V, 10 V and 10 V respectively. The ac voltage applied to the circuit will be

• A. 20 V
• B. 10 V
• C. 5 V
• D. 25 V

Answer 1

Answer: (C)

5 V

Answer 2

$V = \sqrt{V_{R}^{2} + (V_{L} - V_{C})^{2}} = \sqrt{(5)^{2} + (10 - 10)^{2}} = 5Volt$