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Which of these is the correct arrangement of electric cells in a battery?

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Important Questions on Electric Current and Its Effects

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7th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 3
Which of these devices work due to the heating effect of electric current?
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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 4

An electric fuse consists of a metal wire.
The wire breaks the electric circuit when the electricity load is too high.

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What makes the wire break when the electricity load is too high?

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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 5
Why does the filament of a bulb glow when connected to an electric circuit?
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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 6
Which of these can cause a fire in an electric circuit?
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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 7
Which of these labels on an electric device confirms standard quality?
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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 8
Which of these consumes the least electricity for producing the same amount of light?
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7th CBSE
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Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 9

The picture shows steel clips being attracted to an iron nail in an electric circuit.

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Which effect of electric current attracts the steel clips to the iron nail?

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7th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VII>Chapter 14 - Electric Current and Its Effects>Exercise>Q 10
In which of these devices is an electromagnet used?