Question

We have a 30w -6v bulb which we want to glow by a supply of 120v .What will have to be done for it?

Answer 1

Answer:

We need to put 20 Bulbs of 30W 6V bulbs  in series

Step-by-step explanation:

We have a 30w -6v bulb which we want to glow by a supply of 120v .What will have to be done for it?

120/6 = 20

We need to put 20 Bulbs of 30W 6V bulbs  in series

So that Voltage drop across each bulb =  6 V