Question

A 10,000J battery is depleted in 2h. What power consumption is this? *


A) 5000W

B) 3W

C) 1.4W

D) 20000W


show your work please

Answer 1

Answer:

C) 1.4W

Explanation:

Given;

energy of the battery, E = 10,000 J

duration of the battery, t = 2 hours

The power consumption of the battery is calculated as;

$Power = \frac{Energy}{time} \\\\Power = \frac{10,000}{2 \times 3600 } \\\\Power = 1.4 \ J/s = 1.4 \ W$

Therefore, the power consumption of the battery is 1.4 W