EASY
7th CBSE
IMPORTANT
Earn 100

Name the metal which is used to make the filament of an electric bulb.

Important Questions on Electric Current and Its Effects
EASY
7th CBSE
IMPORTANT
Which effect of current is utilised in the working of an electric fuse?

EASY
7th CBSE
IMPORTANT
What is the full form of CFL?

MEDIUM
7th CBSE
IMPORTANT
Name the phenomenon which occurs when the two naked wires of electricity supply line touch each other.

MEDIUM
7th CBSE
IMPORTANT
Name the phenomenon which occurs when too many electrical appliances are connected to a single socket.

EASY
7th CBSE
IMPORTANT
What is the name of a safety device which cuts off the electricity supply during a short circuit by turning off a switch?

EASY
7th CBSE
IMPORTANT
What is the name of a safety device which cuts off the electricity supply during a short circuit by breaking a thin wire?

EASY
7th CBSE
IMPORTANT
Name the device which is being used increasingly in place of fuse.

EASY
7th CBSE
IMPORTANT
Which important discovery was made by Oersted?
