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7th CBSE
IMPORTANT
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is a safety device that works on the heating effect of current.

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Important Questions on Electric Current and Circuits

EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 4
Fuse wire is usually made of an alloy of ____ and lead.
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 5
The current in the circuit increases due to _____ or overloading.
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 1
Is compass a magnet?
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 2
Name the two effects produced by an electric current flowing through a wire.
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 3
List two uses of an electromagnet.
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 4
What is the use of an armature in an electric bell?
EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 1
In an open circuit, the electric component that remains open is :
EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Exercise>Q 2
The symbol of a _____ consists of parallel lines of different length.