Science

8th

grade

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Electric current and its chemical effects

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15 questions

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  • 1. Multiple Choice
    20 seconds
    1 pt

    1.An electric current can produce

    heating effect only.

    chemical effect only.

    magnetic effect only.

    chemical, heating, and magnetic effects.

  • 2. Multiple Choice
    20 seconds
    1 pt

    When an electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates

    the chemical effect of current.

    the heating effect of current.

    the magnetic effect of current.

    the lightning effect of current.

  • 3. Multiple Choice
    20 seconds
    1 pt

    Which one of the following solutions will not conduct electricity?

    lemon juice

    vinegar

    tap water

    vegetable oil

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