Question

Does the in-phase relationship of a pure resistor hold for a pure inductor?

Options

• Yes; current and voltage are in phase.

• No; current is NOT in phase with voltage.

• Yes; the phase angle is zero \[0^\circ\].

• Yes; the voltage and current phasors coincide.

Answer 1

For a pure inductor, current is NOT in phase with voltage. Their phasors differ in direction rather than coinciding as they do for a pure resistor.