100W bulb is operated by 200v, the current flowing through bulb is ______?

2.5 A

0.5 A

1 A

None of these

The power (P) is given by:

P = VI

Given P = 100 W and V = 200 V, we can find the current (I):

100 = 200 × I

I = 100 / 200

= 0.5 A