Question

An electric bulb of 100 watts is used for 3 days. Calculate the electrical energy consumed per day.

Answer 1

Answer:

0.36 units

Explanation:

Electrical energy consumed by the bulb per day = P x t = 60 W x 6h = 360 Wh

1 unit = 1 kW h = 1000 W h

1 W h = (1/1000) unit

360 W h = 0.360 unit

Electrical energy consumed by the bulb per day = 0.36 unit

Answer 2

Energy=power×time

and in the case of current electricity  is measured in kilo watt hour

SO

100×3×24=7200 WHr =7.2 ×10³KWHr