The correct answer is: B. Reactive power is zero.
In a purely inductive circuit, the current lags the voltage by 90 degrees. This means that the current is at its maximum when the voltage is zero, and the current is zero when the voltage is at its maximum. This means that the power factor of a purely inductive circuit is zero.
Power factor is the ratio of real power to apparent power. Real power is the power that is actually used by the load, while apparent power is the total power that is flowing through the circuit. The power factor of a purely inductive circuit is zero because the current and voltage are 90 degrees out of phase, which means that there is no real power being used by the load.
Reactive power is the power that is stored in the inductor’s magnetic field. It is not used by the load, but it does cause the current to flow through the circuit. The reactive power of a purely inductive circuit is equal to the product of the inductance and the square of the voltage.
Apparent power is the total power that is flowing through the circuit. It is equal to the product of the current and the voltage. The apparent power of a purely inductive circuit is equal to the product of the inductance and the square of the current.