Question

A 10v fan with a current of 2a is turned on for 30 seconds. Calculate the energy transferred in joules.

Answer 1

Answer:

E= 600J

Explanation:

we know E=I^2 Rt

given V= 10v , I=2A, t=30s

R= V/I

therefore,

E=I^2 * V/I *t

E=IVt

= 2*10*30

=600J,

the total energy transferred is therefore 600J