Question

What do you understand by the term fuse in an electric circuit? 18. State the composition

Answer 1

A fuse is the safety device which is added to an electric circuit .It ensures that a electric circuit is not short circuited . If an undesirable amount of current flows through then it melts and helps in preventing short circuit .

Answer 2

Explanation:

It is a safety device used to prevent the electric appliances against excessive electric current.

It consists of a piece of wire made of appropriate melting point like aluminium, copper, iron, lead, etc.

Generally, metallic wire made of tin ( 25% ) and lead ( 75% ) having low melting point is used.