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Electrical and Electronic Engineering

Description: This quiz covers various concepts and principles related to Electrical and Electronic Engineering.
Number of Questions: 15
Created by:
Tags: electrical engineering electronics circuits signals systems
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Which of the following is a unit of electric charge?

  1. Ampere

  2. Coulomb

  3. Volt

  4. Ohm

Show answer
Correct Option: B
Explanation:

The coulomb (C) is the SI unit of electric charge.

In a series circuit, the total resistance is:

  1. Equal to the sum of individual resistances

  2. Less than the sum of individual resistances

  3. Greater than the sum of individual resistances

  4. Independent of the individual resistances

Show answer
Correct Option: A
Explanation:

In a series circuit, the total resistance is equal to the sum of the resistances of all the components connected in series.

The frequency of an alternating current (AC) is measured in:

  1. Hertz

  2. Radians per second

  3. Cycles per second

  4. All of the above

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Correct Option: D
Explanation:

The frequency of an AC is measured in hertz (Hz), radians per second (rad/s), or cycles per second (cps). All of these units are equivalent.

Which of the following is a type of semiconductor device?

  1. Diode

  2. Transistor

  3. Resistor

  4. Capacitor

Show answer
Correct Option: A
Explanation:

A diode is a type of semiconductor device that allows current to flow in one direction only.

The gain of an amplifier is:

  1. The ratio of output voltage to input voltage

  2. The ratio of output current to input current

  3. The ratio of output power to input power

  4. All of the above

Show answer
Correct Option: D
Explanation:

The gain of an amplifier can be expressed as the ratio of output voltage to input voltage, the ratio of output current to input current, or the ratio of output power to input power.

Which of the following is a type of digital logic gate?

  1. AND gate

  2. OR gate

  3. NOT gate

  4. All of the above

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Correct Option: D
Explanation:

AND gate, OR gate, and NOT gate are all types of digital logic gates.

The sampling theorem states that:

  1. A signal can be reconstructed from its samples if the sampling frequency is at least twice the highest frequency component of the signal

  2. A signal can be reconstructed from its samples if the sampling frequency is equal to the highest frequency component of the signal

  3. A signal can be reconstructed from its samples if the sampling frequency is less than the highest frequency component of the signal

  4. None of the above

Show answer
Correct Option: A
Explanation:

The sampling theorem states that a signal can be reconstructed from its samples if the sampling frequency is at least twice the highest frequency component of the signal.

Which of the following is a type of modulation?

  1. Amplitude modulation (AM)

  2. Frequency modulation (FM)

  3. Phase modulation (PM)

  4. All of the above

Show answer
Correct Option: D
Explanation:

Amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM) are all types of modulation.

The power factor of an AC circuit is:

  1. The ratio of real power to apparent power

  2. The ratio of apparent power to reactive power

  3. The ratio of real power to reactive power

  4. None of the above

Show answer
Correct Option: A
Explanation:

The power factor of an AC circuit is the ratio of real power to apparent power.

Which of the following is a type of electrical machine?

  1. Generator

  2. Motor

  3. Transformer

  4. All of the above

Show answer
Correct Option: D
Explanation:

Generator, motor, and transformer are all types of electrical machines.

The impedance of a circuit is:

  1. The total resistance of the circuit

  2. The total reactance of the circuit

  3. The combination of resistance and reactance in the circuit

  4. None of the above

Show answer
Correct Option: C
Explanation:

The impedance of a circuit is the combination of resistance and reactance in the circuit.

Which of the following is a type of electrical insulation?

  1. Rubber

  2. Plastic

  3. Ceramic

  4. All of the above

Show answer
Correct Option: D
Explanation:

Rubber, plastic, and ceramic are all types of electrical insulation.

The capacitance of a capacitor is:

  1. The ability of a capacitor to store charge

  2. The amount of charge stored on a capacitor

  3. The ratio of charge to voltage on a capacitor

  4. All of the above

Show answer
Correct Option: C
Explanation:

The capacitance of a capacitor is the ratio of charge to voltage on a capacitor.

Which of the following is a type of electrical conductor?

  1. Copper

  2. Aluminum

  3. Silver

  4. All of the above

Show answer
Correct Option: D
Explanation:

Copper, aluminum, and silver are all types of electrical conductors.

The inductance of an inductor is:

  1. The ability of an inductor to store energy

  2. The amount of energy stored in an inductor

  3. The ratio of flux linkage to current in an inductor

  4. All of the above

Show answer
Correct Option: C
Explanation:

The inductance of an inductor is the ratio of flux linkage to current in an inductor.

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