Question

When an AC source is connected across a pure resistor, the current in the resistor -

• A. lags behind the voltage.
• B. is in phase with the voltage.
• C. leads ahead the voltage.
• D. may lead or lag the voltage.

Answer 1

The correct option is B is in phase with the voltage.

We know that, when an AC source is connected across a pure resistor, both current and voltage are in the same phase.

Hence, option $\left(B\right)$ is the correct answer.