In an AC circuit, what does the impedance (Z) represent?
Practice Questions
Q1
In an AC circuit, what does the impedance (Z) represent?
Total opposition to current flow
Only resistance
Only reactance
Voltage drop
Questions & Step-by-Step Solutions
In an AC circuit, what does the impedance (Z) represent?
Correct Answer: Impedance (Z) is the total opposition to AC.
Step 1: Understand that in an AC circuit, current changes direction periodically.
Step 2: Know that impedance (Z) is a measure of how much the circuit resists this changing current.
Step 3: Realize that impedance includes two parts: resistance (which opposes current flow) and reactance (which opposes changes in current due to capacitors and inductors).
Step 4: Remember that impedance is measured in ohms, just like resistance.
