Question

what will be the current drawn by an electric bulb of 40W when it is connected to a source of 220 V?

Answer 1

P = V×I 
I = P/V 
The formula we will use to calculate the current drawn by an electric bulb of 40W when it is connected to a source of 220V is - 
I = P/V 
⇒ I = 40/220 
⇒ I = 0.18 A 

∴ The current drawn by an electric bulb of 40W when it is connected to a source of 220V is 0.18A

Answer 2

Answer:

Explanation:

Given :-

Power, (P) = 40 W

Potential Difference, (V) = 220 V

Current, (I) = ???

We Know,

P = V × I

I = P/V

⇒ I = 40/220

⇒ I = 0.18 A.

Hence, the current drawn by an electric bulb of 40W is 0.18 A.