HARD
7th CBSE
IMPORTANT
Earn 100

With the help a simple experiment, explain that electric current produces electromagnets.

Important Questions on Electric Current and Its Effects

HARD
7th CBSE
IMPORTANT
What is an electromagnet? List some uses of electromagnets.
HARD
7th CBSE
IMPORTANT
Explain the working of an electric bell using a diagram.
MEDIUM
7th CBSE
IMPORTANT
What is it called when electricity is in motion?
MEDIUM
7th CBSE
IMPORTANT
A material used to make elements in electrical appliances.
EASY
7th CBSE
IMPORTANT
Name an alloy of nickel and chromium.
MEDIUM
7th CBSE
IMPORTANT
A safety device that prevents chances of fire.
MEDIUM
7th CBSE
IMPORTANT
Name a cylindrical coil of current-carrying wire.
MEDIUM
7th CBSE
IMPORTANT
Why is copper used in making connecting wires?