Question

an electric motor takes 6 ampere from a 2020 volt line. calculate the power of the motor and energy consumed in 3 hours​

Answer 1

Q. an electric motor takes 6 ampere from a 2020 volt line. calculate the power of the motor and energy consumed in 3 hours.

Solution:-

• 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 = 3 h = 3 x 60 x 60 = 10800 s

• P = 1100 x 10800 = 1188 × 10^4 J

• Therefore, power of the motor

= 1100 W

• Energy consumed by the motor

= 1188 × 10^4 J

i hope it helps you.

Answer 2

Answer:

Energy ≈ 1.42 × 10⁴ kJ

Explanation:

I assumed that the voltage is 220, not 2020 (because that is not usual); maybe you made a mistake writing the question.

Energy consumed formula is simply current × voltage × time

So, Energy = 6 × 220 × (3×60×60) Joules

Energy = 14256000 Joules

Energy = 1.4256 × 10⁷ Joules ≈ 1.42 × 10⁴ kJ