MEDIUM
7th CBSE
IMPORTANT
Earn 100

Write the uses of electromagnets.

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 2
Heat produced is more in a _____ wire
EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Electric Current and Circuits>Try out>Q 3
_____ is a safety device that works on the heating effect of current.
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?