Question

In a series LCR circuit the voltage across an inductor, capacitor and resistor are 20V, 20V and 40V respectively. The phase difference between the applied voltage and the current in the circuit is

• A. ${30}^0$
• B. ${45}^0$
• C. ${60}^0$
• D. $0^0$

Answer 1

Answer: (D)

$0^0$

$tan\varphi =\frac{X_L-X_C}{R}=\frac{V_L-V_C}{V_R}=\frac{20-20}{40}=0$

$tan\varphi =0$

So, $\varphi =0$

Option D