Fundamentals of Electric Circuits MCQs (Part-2)

What does Ohm’s law relate?

A Power, energy
B Current, resistance
C Voltage, current
D Voltage, power

What is the total resistance in a series circuit?

A Minimum resistance
B Average resistance
C Maximum resistance
D Sum of resistances

In a parallel circuit, how is current divided?

A According to resistance
B At random
C Equally
D Based on voltage

What does a capacitor store?

A Thermal energy
B Light energy
C Electric energy
D Magnetic energy

What is the main function of an inductor?

A Store energy
B Resist current change
C Increase current flow
D Generate voltage

What is the purpose of Kirchhoff’s Voltage Law (KVL)?

A Distribution of voltage
B Conservation of current
C Voltage in a series circuit
D Total power in the circuit

What happens to the current in a parallel circuit?

A Remains the same
B Increases
C Decreases
D Divides into branches

What is the impedance in AC circuits?

A Voltage across components
B Current
C Total opposition to current
D Resistance only

What is the role of a transformer?

A Change voltage level
B Increase current
C Filter noise
D Store energy

What does an electrical filter do?

A Increases frequency
B Reduces noise
C Boosts signal
D Changes voltage

What is the power factor in an AC circuit?

A Voltage to current ratio
B Total energy consumption
C Ratio of real to apparent power
D Power loss

What is a resistive circuit characterized by?

A Constant voltage
B Constant current
C Energy storage
D Opposition to current flow

What does the term “steady-state analysis” mean?

A Analyzing circuit when it is at equilibrium
B Analyzing circuit during transitions
C Analyzing only voltage
D Analyzing only current

What is a sine wave in AC circuits?

A Square wave
B Smooth oscillation
C Uniform waveform
D Random signal

What is the result of resonance in a circuit?

A Increased impedance
B Maximum voltage drop
C Maximum power transfer
D No current flow