b) An electric motor takes 7 A from a 200 V line. Determine the power of the
motor and the energy consumed in 2 h.
Answers
Answer:
power of the motor = 1400 W
Energy consumed by the motor = 1008 x 10^4 J
Step-by-step explanation:
Power (P) is given by the expression,
P = VI
Where,
Voltage,V = 200 V
Current, I = 7 A
P= 200 x 7 = 1400 W
Energy consumed by the motor = Pt
Where,
Time, t = 2 h = 2 x 60 x 60 = 7200 s
ˆ´ P = 1400 x 7200 = 10080000 J
Therefore, power of the motor = 1400 W
Energy consumed by the motor = 1008 x 10^4 J
Answer:
In question there will 5A not 7A I know the answer of 5A
Step-by-step explanation:
Power (P) is given by the expression,
P = VI
Where,
Voltage,V = 220 V
Current, I = 5 A
P= 220 x 5 = 1100 W
Energy consumed by the motor = Pt
Where,
Time, t = 2 h = 2 x 60 x 60 = 7200 s
ˆ´ P = 1100 x 7200 = 7.92 x 106 J
Therefore, power of the motor = 1100 W
Energy consumed by the motor = 7.92 x 106 J