Question

An electric fan is connected to a 220V source. The current is 4 A. What is the
power of the fan?

Answer 1

Answer:

Given that,

Voltage V=220V

Current I=0.5A

Now, rate at which the electrical energy transformed 

  P=V×I

 P=220×0.5

 P=110watt

Now, the energy is transformed in 2 min

  P=tE

 E=P×t

 E=110×120

 E=13200J

Hence, the energy transformed is 13200 J