Voltage Lab

Voltage and current, ignoring the phase angle

Question 1 of 10

What is the unit of measurement for active power?

Active power is measured in Watts (W).

Question 2 of 10

In a purely resistive circuit, voltage and current are in phase, resulting in a 0-degree phase angle difference.

Question 3 of 10

P = V * I * cos(?) is the formula for calculating active power in a single-phase AC circuit, where ? is the phase angle.

Question 4 of 10

Reactive power is often referred to as wattless power because it does not contribute to the actual work done by the circuit.

Question 5 of 10

Reactive power is measured in Volt-Ampere Reactive (VAR).

Question 6 of 10

Apparent power is the product of voltage and current without considering the phase angle.

Question 7 of 10

Apparent power is measured in Volt-Amperes (VA).

Question 8 of 10

The relationship is defined by the power triangle: S = ?(P^2 + Q^2).

Question 9 of 10

Complex power is represented as S = P + jQ, where j is the imaginary unit.

Question 10 of 10

The power factor in a purely resistive circuit is 1, as the phase angle between voltage and current is 0.