What is the effect of increasing the capacitance in an AC circuit? (2019)

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Question: What is the effect of increasing the capacitance in an AC circuit? (2019)

Options:

Correct Answer: Decreases capacitive reactance

Exam Year: 2019

Solution:

Increasing the capacitance decreases the capacitive reactance (X_C = 1/(2πfC)), which can lead to an increase in current.

What is the effect of increasing the capacitance in an AC circuit? (2019)

What is the effect of increasing the capacitance in an AC circuit? (2019)

Step 1: Understand what capacitance is. Capacitance is the ability of a component (capacitor) to store electrical energy.
Step 2: Know that in an AC (Alternating Current) circuit, capacitors react differently than in DC (Direct Current) circuits.
Step 3: Learn about capacitive reactance (X_C). It is a measure of how much a capacitor resists the flow of AC current. The formula is X_C = 1/(2πfC), where f is the frequency of the AC signal and C is the capacitance.
Step 4: Realize that if you increase the capacitance (C), the value of X_C decreases because they are inversely related.
Step 5: Understand that a decrease in capacitive reactance (X_C) means that the capacitor allows more current to flow through the circuit.
Step 6: Conclude that increasing the capacitance in an AC circuit can lead to an increase in current.

No concepts available.