Question

The phasor diagram for a component connected with AC supply is shown below. Select the incorrect statement.

• A. Current is leading the voltage.
• B. The phase difference between the current and voltage is $\frac{\pi }{3}$.
• C. The component in the circuit is a pure resistor.
• D. The peak magnitude of current is less than the peak magnitude of voltage.

Answer 1

The correct option is C The component in the circuit is a pure resistor.


From the given phasor diagram, we can conclude that -

$\left(i\right)$ Current is leading the voltage

$\left(ii\right)$ The phase difference between the current and voltage is $\frac{\pi }{3}$.

$\left(iii\right)$ The peak magnitude of current is less than the peak magnitude of voltage.

But for the pure resistive circuit connected with AC supply, current and voltage remain in the same phase.

Therefore, the component in the circuit is not a pure resistor.

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