Magnetism

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26. Which of the following is not an example of electromagnetic induction?

    a) Generators

    b) Transformers

    c) Inductors

    d) Motors

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27. Faraday’s law of electromagnetic induction states that:

    a) The induced electromotive force is directly proportional to the rate of change of magnetic field strength

    b) The induced electromotive force is inversely proportional to the rate of change of magnetic field strength

    c) The induced electromotive force is directly proportional to the strength of the magnetic field

    d) The induced electromotive force is inversely proportional to the strength of the magnetic field

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28. Which of the following devices works on the principle of electromagnetic induction?

    a) Electric motor

    b) Electric generator

    c) Transformer

    d) All of the above

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29. The phenomenon of self-induction occurs in:

    a) Inductors

    b) Capacitors

    c) Resistors

    d) Diodes

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30. The phenomenon of mutual induction occurs in:

    a) Inductors

    b) Capacitors

    c) Resistors

    d) Diodes

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