Question

The value of power factor in purely inductive circuit is:

• A. Zero
• B. $0.1$
• C. $1$
• D. Infinite

Answer 1

The correct option is A Zero

Power factor is given by $Pf=\frac{R}{Z}$
where $R$ is the resistance of the circuit and $Z$ is the impedence of the circuit.
Since the given circuit is purely inductive, so resistance of the circuit is zero i.e. $R=0$
$⟹Pf=\frac{0}{Z}=0$