Question

When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.Write true or false and Give reason for it.

Answer 1

True as the material used for making the fuse wire has melting point equal to the max. temperature(current) the appliances in that connection can hold.
So if the current exceeds, it gets heated and melts.

Hope it helps.

Answer 2

Dear Student,

◆ Answer -

True

● Explanation -

• Fuse is made of material with low melting point such as tin, lead, zinc, etc.
• Hence, when current exceeds certain limit, it overheats and melts.
• This causes interruption of current.

# Extra information -

• Electric fuse is a device used to protect over-current in electric circuit.
• It is made up of material with low melting point such as tin, lead, zinc, etc.
• When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.

Thanks dear. Hope this is helpful to you...