MEDIUM
7th CBSE
IMPORTANT
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Fuse wire is usually made of an alloy of tin and

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Important Questions on Electric Current and Circuits

MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 1
Describe a method of connecting four cells to make a battery .
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 2
Define Open and Closed circuit .
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 3
What is overloading of an electric circuit ?
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 4
Why is the filament of the bulb made very thin and given a helical shape ?
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 5
What is the function of a switch?
EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 6
What is Electromagnet?
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 1
Explain the factors that affect the amount of heat produced by the flow of electric current through the wire.
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 2
What is an electric fuse? Explain briefly how it works.