Question

220 V, 50 Hz AC source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit:

• A. 3.33 A
• B. 33.3 A
• C. 5 A
• D. 10 A

Answer 1

Answer: (A)

3.33 A

Answer 2

From the formula $I=\frac{V}{\sqrt{{{R}^{2}}+{{(\omega L)}^{2}}}}$ $=\frac{220}{\sqrt{{{(20)}^{2}}+{{(2\pi \times 50\times 0.2)}^{2}}}}$