Question

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urgent all parts​

Answer 1

Explanation:

1. The dimension of power is energy divided by time. In the International System of Units (SI), the unit of power is the watt (W), which is equal to one joule per second. Other common and traditional measures are horsepower (hp), comparing to the power of a horse; one mechanical horsepower equals about 745.7 watts.

2. Given,

Power of device, P = 500 W = 0.5 kW

Time taken, t = 10 h

We know that,

Energy consumed = Power x time taken

E = 0.5 kW * 10 h = 5 kWh.