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Chapter 10

Electric Current and its Effects

Science•Class 7•CBSE

10 Questions Available

Showing 10 questions on this page

What are filaments of a bulb and a heater made up of?

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Define electric circuit.

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Can we use an electromagnet separating plastic bags from a garbage heap? Explain.

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An electrician is carrying out some repairs in a building. He wants to replace a fuse by a piece of wire. Would you agree with the electrician? Give reasons for your response.

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Write short notes on magnetic effects of electric current

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Explain the function of cell in a circuit.

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Differentiate between electric current and electric circuit.

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Explain the formation and uses of battery.

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Write short notes on heating effects of electric current.

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How fuses are useful?