Electrical Wiring Pretest

What does AC stand for in electrical circuits?

• Alternating Current

• Active Current

• Amplified Current

• Analog Current

Explain the primary difference between AC and DC circuits in terms of current flow.

• AC circuits have a constant current flow, while DC circuits have a current that changes direction.

• AC circuits have a current that changes direction periodically, while DC circuits have a constant current flow.

• Both AC and DC circuits have a constant current flow.

• Both AC and DC circuits have a current that changes direction periodically.

Analyze the impact of adding a capacitor in parallel to an existing circuit. How does it affect the overall capacitance?

• The overall capacitance decreases.

• The overall capacitance remains the same.

• The overall capacitance increases.

• The overall capacitance becomes zero.

Describe how an inductor behaves in an AC circuit compared to a DC circuit.

• In an AC circuit, an inductor resists changes in current, while in a DC circuit, it acts as a short circuit after a long time.

• In an AC circuit, an inductor acts as a short circuit, while in a DC circuit, it resists changes in current.

• In both AC and DC circuits, an inductor acts as a short circuit.

• In both AC and DC circuits, an inductor resists changes in current.

Evaluate the effect of increasing the frequency of an AC supply on the reactance of a capacitor in the circuit.

• The reactance of the capacitor increases.

• The reactance of the capacitor decreases.

• The reactance of the capacitor remains the same.

• The reactance of the capacitor becomes zero.