Grade11 - Electrical Fundamentals II - Module 2 - Quiz

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Quizzes Created: 9 | Total Attempts: 39,674
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Grade11 - Electrical Fundamentals II - Module 2 - Quiz - Quiz

Questions and Answers
  • 1. 

    The symbol shown here is 

    • A.

      Capacitor

    • B.

      Resistor

    • C.

      Battery

    • D.

      Inductor

    Correct Answer
    D. Inductor
    Explanation
    The symbol shown in the question represents an inductor. An inductor is an electronic component that stores energy in a magnetic field when an electric current flows through it. It is commonly used in electrical circuits to control the flow of current, filter out unwanted frequencies, and store energy. The symbol for an inductor typically consists of two parallel lines with curved ends.

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  • 2. 

    The unit of Inductance 

    • A.

      Ohms

    • B.

      Henrys

    • C.

      Hendry

    • D.

      Harris

    Correct Answer
    B. Henrys
    Explanation
    The unit of inductance is Henrys. Inductance is a property of an electrical circuit that opposes any change in the current flowing through it. It is measured in Henrys, named after the American scientist Joseph Henry. Inductance is important in many applications, such as inductors used in electronic circuits, transformers, and motors.

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  • 3. 

    The abbreviation of a Inductor

    • A.

      L

    • B.

      R

    • C.

      C

    • D.

      K

    Correct Answer
    A. L
    Explanation
    The correct answer is L. In electronics, an inductor is a passive electrical component that stores energy in a magnetic field when electric current flows through it. The abbreviation for an inductor is L, which stands for "inductance." This is because inductance is a property of an inductor that determines its ability to store energy in a magnetic field. Therefore, L is the correct abbreviation for an inductor.

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  • 4. 

    The formula is used to calculate, Inductor 

    • A.

      Resistance

    • B.

      Reactance

    • C.

      Results

    • D.

      Reactive

    Correct Answer
    B. Reactance
    Explanation
    The formula is used to calculate reactance. Reactance is a measure of the opposition that an inductor provides to the flow of alternating current. It is represented by the symbol "X" and is measured in ohms. Reactance can be either capacitive or inductive, depending on the type of circuit element (capacitor or inductor) and the frequency of the alternating current. The formula allows us to calculate the reactance value based on the frequency and inductance of the circuit.

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  • 5. 

    The formula 

    • A.

      Inductor in seres

    • B.

      Inductor in parallel

    • C.

      Resistance in series

    • D.

      Resistance in parallel

    Correct Answer
    A. Inductor in seres
  • 6. 

    The formula used is to calulate

    • A.

      Inductance in parallel

    • B.

      Inductance in sereis

    • C.

      Resistance in parallel

    • D.

      Resistance in series

    Correct Answer
    A. Inductance in parallel
    Explanation
    The formula used to calculate inductance in parallel is different from the formulas used for inductance in series, resistance in parallel, and resistance in series. In parallel inductance, the total inductance is calculated by taking the reciprocal of the sum of the reciprocals of individual inductances. This is in contrast to series inductance, where the total inductance is simply the sum of individual inductances. Therefore, the correct answer is inductance in parallel.

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