Question

explain all
1).The fuse wire melts on heating

2.Electricity does not flow through rubber band.

3.fused bulb in a circuit does not glow

Answer 1

fuse has less melting pont as a weak current flows it cutt offs.
rubber is a insulator
if wire cut electricity cannot flow as air ia a insulator

Answer 2

1.the fuse wire melt on heating due to its low melting point.
2.electricity flow due to flow free electron but rubber band has not..
3 tungsten of bulb glow due to heating effect but when tungsten break then circuit is also broked and when circuit is broke electricity does not flow .....as filament of bulb is made of tungsten