Question

An electric bulb is connected to a 220 V generator. The current is 0.50 A. What is the power of the bulb?

Answer 1

⇒ Power (P)= Volt (V) × Current (I)

⇒ P = VI

⇒ 220 Volt (V)× 0.50 Ampere (A)

⇒ 110 Joule (J)/second (s)

⇒ 100 Watt (W)

Therefore, the power of the bulb is 110 W.