Question

Calculate the amount Electrical energy consumed by Electrical motor rated 1.5hp if operated for 7 hours?​

Answer 1

2.82 x 10⁷J

Step-by-step explanation:

Given parameters:

Power rating of the motor = 1.5hp

Time taken = 7hrs

Unknown:

Amount of electrical energy consumed = ?

Solution:

To solve this problem, we need to convert first to standard unit.

1 hp = 746 Watts

1.5hp = 746 x 1.5 = 1119Watts

Also;

7hrs to Seconds;

1 hr = 3600s

7hr = 7 x 3600 = 25200s

So;

Electrical energy = Power x time = 1119 x 25200 = 2.82 x 10⁷J