Electricity And Electronics Vocabulary Test! Trivia Quiz

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Electricity Quizzes & Trivia

Electricity can be defined as the flow of electric charge. Do you really know how electricity is generated and from where does it come? Take this vocabulary test and test your knowledge about basic vocabulary which covers questions from Electricity and Electronics. Read the questions carefully and answer. So, let's try out the quiz. All the best!


Questions and Answers
  • 1. 

    ___________________ is the electric pressure that causes current to flow.

    • A.

      Voltage

    • B.

      Watt

    • C.

      Ampere

    • D.

      Ohms

    • E.

      Joule

    Correct Answer
    A. Voltage
    Explanation
    Voltage is the electric pressure that causes current to flow. It is the potential difference between two points in an electrical circuit that allows the movement of electrons. When there is a difference in voltage, it creates an electric field that pushes the electrons, causing them to move and create an electric current. Voltage is measured in volts and is a fundamental concept in understanding and analyzing electrical circuits.

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  • 2. 

    __________________ is the opposition to the flow of electrons.

    • A.

      Resistance

    • B.

      Electricity

    • C.

      Conduction

    • D.

      Energy

    • E.

      Circuit 

    Correct Answer
    A. Resistance
    Explanation
    Resistance is the opposition to the flow of electrons in a circuit. It is a property of materials that hinders the movement of electric current. When resistance is present, it reduces the flow of electrons and causes the circuit to have less current. Resistance is measured in ohms and is influenced by factors such as the length, cross-sectional area, and temperature of the conductor.

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  • 3. 

    ___________________ is the flow of electrons in a wire or other conductor.

    • A.

      Current

    • B.

      Tides

    • C.

      Energy

    • D.

      Light

    • E.

      Waves

    Correct Answer
    A. Current
    Explanation
    Current is the flow of electrons in a wire or other conductor. It refers to the movement of electric charge through a closed circuit. When a voltage is applied to a conductor, it creates an electric field that causes the electrons to move. This movement of electrons is what we call current. Current can be either direct current (DC), where the flow of electrons is in one direction, or alternating current (AC), where the flow of electrons periodically changes direction.

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  • 4. 

    A ___________________ is a device that changes mechanical energy into electrical energy.

    • A.

      Generator

    • B.

      Battery

    • C.

      Transformer

    • D.

      Motor 

    • E.

      Charger

    Correct Answer
    A. Generator
    Explanation
    A generator is a device that converts mechanical energy into electrical energy. It does this by using a magnet and a coil of wire to create a rotating magnetic field, which induces an electric current in the wire. This current can then be used to power electrical devices or stored in a battery for later use. Generators are commonly used in power plants, as well as in portable devices such as camping generators or backup generators for homes.

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  • 5. 

    A ______________ circuit contains components that are connected one after another.

    • A.

      Series

    • B.

      Resistance

    • C.

      Electrical

    • D.

      Fuse 

    • E.

      None

    Correct Answer
    A. Series
    Explanation
    A series circuit is a type of electrical circuit where the components are connected one after another in a single pathway. In a series circuit, the current flows through each component in the same direction, and the total resistance of the circuit is equal to the sum of the individual resistances of the components. This means that if one component in a series circuit fails or is removed, the entire circuit will be interrupted and no current will flow.

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  • 6. 

    The capacitor capacitance is measured thru a unit called

    • A.

      Ohm

    • B.

      Farad

    • C.

      Hertz

    • D.

      Watt

    • E.

      Option 5

    Correct Answer
    B. Farad
    Explanation
    The correct answer is Farad because capacitance is a measure of the ability of a capacitor to store charge. It is measured in Farads, which represents the amount of charge a capacitor can store per volt of potential difference across its plates. Ohm, Hertz, and Watt are units of resistance, frequency, and power respectively, and are not relevant to measuring capacitance.

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  • 7. 

    How do you call the electronic component that works by transferring electrical current from one coil (called primary) to another coil (called secondary)?

    • A.

      Resistor

    • B.

      Transistor

    • C.

      Transformer

    • D.

      Diode

    Correct Answer
    C. Transformer
    Explanation
    A transformer is an electronic component that transfers electrical current from one coil (primary) to another coil (secondary). It does this through electromagnetic induction, where a changing current in the primary coil creates a changing magnetic field, which in turn induces a current in the secondary coil. Transformers are commonly used to step up or step down voltage levels in power distribution systems.

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  • 8. 

    Regarding diodes, we CANNOT state that:

    • A.

      They allow electrical current to flow on only direction, blocking currents coming from the oposite direction.

    • B.

      Every diode has polarity.

    • C.

      The positive pole is called anode and the negative pole is called cathode.

    • D.

      They can only work as conductors.

    Correct Answer
    D. They can only work as conductors.
    Explanation
    The given statement "They can only work as conductors" is incorrect. Diodes can work as both conductors and insulators depending on the direction of the applied voltage. When the diode is forward biased (positive voltage applied to the anode and negative voltage applied to the cathode), it acts as a conductor and allows current to flow. When the diode is reverse biased (negative voltage applied to the anode and positive voltage applied to the cathode), it acts as an insulator and blocks the current flow. Therefore, diodes can work as both conductors and insulators.

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  • 9. 

    On the US power grid, the alternating voltage has a frequency of:

    • A.

      60 Hz

    • B.

      50 Hz

    • C.

      110 Hz

    • D.

      220 Hz

    Correct Answer
    A. 60 Hz
    Explanation
    The correct answer is 60 Hz. The frequency of alternating voltage on the US power grid is 60 Hz. This means that the direction of the current changes 60 times per second. The standard frequency for power grids varies around the world, with 60 Hz being used in countries like the US and Canada, while 50 Hz is more common in countries like the UK and most of Europe. The frequency of the power grid is important for the proper functioning of electrical devices and appliances.

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  • 10. 

    ______________ integrated circuits are used on analog circuits such as amplifiers, oscillators and voltage regulators

    • A.

      Linear

    • B.

      Parallel

    • C.

      Digital

    • D.

      Bidirectional 

    Correct Answer
    A. Linear
    Explanation
    Linear integrated circuits are used on analog circuits such as amplifiers, oscillators, and voltage regulators because they are designed to process continuous signals and perform linear operations on them. These circuits are capable of amplifying, filtering, and modulating analog signals with high precision and accuracy. They are commonly used in audio and video equipment, communication systems, and control systems where the input and output signals are continuous and require linear processing.

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