Question
A novice electrician, while carrying out some repairs in Sumit’s house, tried to put a piece of tungsten wire in a ‘fuse. Sumit’s father, on noticing this, stopped him from doing so. Give reasons as to why he did that.
Answer
Tungsten should not be used in the fuse because it has very high melting point. A fuse should have low melting point so that it can burn up when the current exceeds the normal limit.