AC Resistance and Impedance Quiz

What is the main component of a pure resistive circuit?

• Inductor

• Capacitor

• Transformer

• Resistor

In a pure resistive circuit, how do the voltage and current waveforms relate?

• Voltage and current are in phase

• Current leads voltage

• Voltage leads current

• Voltage and current are out of phase

What is the formula for calculating current in a resistive circuit over time?

• I = V / Z

• I = I_max * cos(ωt)

• I = I_max * sin(ωt)

• I = V * R

What does a phaser diagram represent in a resistive circuit?

• The magnitude of current only

• The phase alignment of voltage and current

• The magnitude of voltage only

• The phase difference between voltage and current

What is the unit of measurement for both resistance and impedance?

• Watts

• Ohms

• Volts

• Amperes

How is impedance denoted in AC circuits?

• R

• V

• Z

• I

What is the relationship between voltage and current in Ohm's Law for AC circuits?

• V = I / Z

• V = I * Z

• V = I * R

• V = Z / I

In DC circuits, what term is used to describe the opposition to current flow?

• Inductance

• Impedance

• Capacitance

• Resistance

What is the key difference between impedance and resistance?

• Impedance accounts for phase shift

• Resistance is used in AC circuits

• Resistance accounts for phase shift

• Impedance is used in DC circuits

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