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Electricity and...

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  • Question 1
    1 / -0

    Study the following table and figure out the wrongly categorised material.

    Non-conductors of Electricity Conductors of Electricity
    Cotton Steel
    Plastic Silver
    Copper Iron
    Rubber Brass
    Wool Gold

  • Question 2
    1 / -0

    Which of the following statements is NOT true?

  • Question 3
    1 / -0

    Seema was making a circuit using a wire, switch and a bulb, but she was running short of the connecting wires. To complete the circuit, she may use a

  • Question 4
    1 / -0

    Pick the correct statement.

  • Question 5
    1 / -0

    What should be present in a substance for it to be a conductor of electricity ?

  • Question 6
    1 / -0

    The filament of a torch bulb is fixed to two thicker wires. One thick wire is connected to the ________ and the other thick wire is connected to the ___________.

  • Question 7
    1 / -0

    Match the columns:

    Column I Column II
    A. Covering of switches, appliances, plugs and sockets is made of insulators P. is a simple device that either breaks the circuit or completes it.
    B. When the terminals of the bulb are connected with those of the electric cell by wires, then Q. because they don't allow current to pass through them, so we don't get a shock if we touch them.
    C. Electric switch R. the current passes through the filament of the bulb. This makes the bulb glow.
    D. Electric cell S. is a device which converts chemical
    energy into electrical energy.

  • Question 8
    1 / -0

    Which of the following is/are the correct reason(s) for using tungsten in an incandescent bulb ?

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