Question

What is the maximum number of $60W$ bulbs that can be made to run from the mains supply of $220volts$ if we do not want to overload a $5A$ fuse?

Answer 1

The power will be given as

$P=V\times i$

$=220\times 5$

The power taken by each bulb is$1100$

So the bulb is of$60W$

$N=\frac{1100}{60}$

So the number of such bulb connected will be $18$