Question

1)when we switch on electric it
becomes hot why?it is so
2)Does energy convert many kinds of energy explain to examples
3) energy destroy or transform one another form why?

Answer 1

1. due to heating effect of electic current
h is directly proportional to square of i (current)
2. ex:- potential energy to kinetic energy
electric energy to chemical energy
light energy to chemical energy or vice versas
3. they cannot be created nor be destroyed they only transferred from one point to another ...
cause due to law of conservation of mass
hope it helps