Question

The use of fuse in electric power line is
A.. just to show an indication where there is an overload
B.. as a switch to use in an emergency
C.. to keep main voltage constant
D.. to open the line permanently when there is overload

Answer 1

The use of fuse in the electric power line is  to open the line permanently when there is overload. (option D)

• Fuses are used as safety devices in electric circuits or appliances in order to protect them.
• Fuses break the circuit if there is a malfunction seen in electric appliances or if there is overflow of current due to malfunction of the electric device.
• It is very cheap and easily available.
• There are two types of fuses AC and DC fuse.