Question

In a circuit containing an inductance of zero resistance, the e.m.f. of the applied ac voltage leads the current by

• A. ${90}^{\circ }$
• B. ${45}^{\circ }$
• C. ${30}^{\circ }$
• D. $0^{\circ }$

Answer 1

The correct option is A ${90}^{\circ }$

In a pure inductor (zero resistance), voltage leads the current by ${90}^{\circ }$ i.e., $\frac{\pi }{2}$.