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WorksheetsBlock 4 AC Terms
Total questions: 17
Worksheet time: 10mins
What is the unit of measure for frequency in AC circuits?
Hertz (Hz)
Volt (V)
Ampere (A)
Ohm (Ω)
In an AC circuit, what component stores energy in a magnetic field?
Resistor
Capacitor
Inductor
Transformer
What type of current continuously changes direction?
Direct Current (DC)
Alternating Current (AC)
Static Current
Pulsating DC
What is the opposition to current flow in an AC circuit due to inductance and capacitance called?
Resistance
Reactance
Impedance
Conductance
Which device in an AC circuit can step up or step down voltage levels?
Resistor
Transformer
Capacitor
Inductor
What is the term for the maximum value reached by an alternating quantity during one cycle?
Average Value
RMS Value
Peak Value
Instantaneous Value
What type of circuit has the same current flowing through all components?
Parallel Circuit
Series Circuit
Complex Circuit
What is the phase difference between voltage and current in a purely resistive AC circuit?
90 degrees
45 degrees
0 degrees
180 degrees
What happens to the capacitive reactance (XC) as the frequency of the AC signal increases?
Increases
Decreases
Remains the same
Becomes zero
What term describes the power consumed in an AC circuit where voltage and current are in phase?
Reactive Power
Apparent Power
True Power
Complex Power
What is the purpose of a capacitor in an AC circuit?
To store energy in an electric field
To increase resistance
To convert AC to DC
To step up voltage
Which factor in an AC circuit determines how much power is effectively used?
Power Factor
Voltage
Current
Frequency
What type of circuit has more than one path for current to flow?
Series Circuit
Parallel Circuit
Resonant Circuit
Open Circuit
What component in an AC circuit opposes the change in current?
Resistor
Capacitor
Inductor
What term is used to describe the product of the voltage and current in an AC circuit, without considering the phase angle?
True Power
Apparent Power
Reactive Power
Complex Power
What component does the picture above represent?
Battery
Light bulb
Ammeter
Resistor
