Question

3. You have seen that the heating effect of current can be put to good use. Can you
think of situations where this effect result in wastage of energy

Answer 1

first it is waste over transferring of current frm one place to another through another with the help of wire in A.C

second when bulb(yellow filament) glows it takes to much current for glowing and change it into heat energy here also it is a wastage