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.


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.