An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

Explanation

I = 5 A
V = 220 V
t = 2 h = `2xx60xx60s = 7200s `
P = V I `= 220 xx5= 1100` W
E = P `xxt = 1000 xx7200 = 7920000J`
Energy consumed `= 7.92 xx10^(6)` J