Question

An electric bulb is rated 40w 220v. Find the current drawn by it

Answer 1

Answer: 0.18 A

Explanation: P = V× I

40 = 220 × I

I = 40/220

I = 0.18 A

Answer 2

Hey there!

Given,

Power (P) = 40 W

Potential Difference (V) = 220 V

Current (I) = ?

We know,

Power = Potential Difference  * Current

i.e P = V * I

or, I = P / V

or, I = 40 / 220

or, I = 0.18 A

Hope It Helps You!