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In an AC circuit, what does impedance represent?
Practice Questions
Q1
In an AC circuit, what does impedance represent?
The total opposition to current flow
The total voltage in the circuit
The total power consumed
The total current flowing
Questions & Step-by-Step Solutions
In an AC circuit, what does impedance represent?
Steps
Concepts
Step 1: Understand that an AC circuit is one where the current changes direction periodically.
Step 2: Know that in any circuit, there are two main factors that oppose current flow: resistance and reactance.
Step 3: Resistance is the opposition to current flow that does not change with frequency, like a light bulb.
Step 4: Reactance is the opposition to current flow that changes with frequency, caused by components like capacitors and inductors.
Step 5: Impedance is a term that combines both resistance and reactance into one value.
Step 6: Therefore, impedance represents the total opposition to current flow in an AC circuit.
No concepts available.
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