Electricity and Magnetism
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Questions and Answers

What is the principle on which devices like a telephone, an electric bell, or a motor work?

  • Chemical effect produced by electricity
  • Magnetic effect produced by electricity (correct)
  • Electrical effect produced by magnetism
  • Mechanical effect produced by electricity
  • What are substances that are attracted by a magnet called?

  • Magnetic substances (correct)
  • Electrical substances
  • Chemical substances
  • Non-magnetic substances
  • Which of the following is not a magnetic substance?

  • Nickel
  • Iron
  • Cobalt
  • Aluminium (correct)
  • What is the most basic law of magnetism?

    <p>Like poles repel one another and unlike poles attract each other</p> Signup and view all the answers

    What is the property by virtue of which the attraction occurs or a substance rests in knots out direction by itself called?

    <p>Magnetism</p> Signup and view all the answers

    What is the relationship between electricity and magnetism as per the text?

    <p>Electricity produces a magnetic effect</p> Signup and view all the answers

    What happens when you try to place two magnets with the same poles together?

    <p>They will repel each other</p> Signup and view all the answers

    Which of the following substances is not attracted by a magnet?

    <p>Aluminium</p> Signup and view all the answers

    What is the primary principle on which an electric bell operates?

    <p>Magnetic effect produced by electricity</p> Signup and view all the answers

    What are substances that are not attracted by a magnet called?

    <p>Non-magnetic substances</p> Signup and view all the answers

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