Electrical Circuits and Impedance Analysis Quiz

Ohm is the unit of electrical resistance.

The unit of reactance is Ohm.

The unit of capacitance is Farad.

The unit of inductance is Henry.

The formula for calculating electrical power is P = I^2R.

The impedance of a purely resistive circuit is purely real.

A capacitor in an AC circuit stores and releases energy.

Reactance in an AC circuit is the opposition to the change in current.

In an AC circuit, the inductor leads the voltage.

The phase difference between voltage and current in a purely resistive circuit is 0 degrees.

The impedance of a capacitor decreases as the frequency of the AC source increases.

In an RL circuit, the phase angle decreases as the frequency of the AC source decreases.

The power factor of an ideal inductor is 0.

Resonance in an RLC circuit occurs when the impedance is minimum.

In a series RLC circuit, the circuit resonates when the inductive reactance (XL) is equal to the capacitive reactance (XC).

The formula for calculating impedance in an RL circuit is Z = R + jXL.

The formula for calculating total impedance in a series RL circuit is Z = square root of (R^2 + (XL)^2).

The power factor of a purely capacitive circuit is 0.