motor power

Watts x hours = watt hours, good luck with your class.

yes exactly the ACE has given correct anawer

Its power consumption is up to 350W while it is running, depending upon the load applied to it.

Its energy consumption is that figure multiplied by the time it is running.

http://www.evsource.com/articles/mind_your_units.php

I think efficiency has to be factored in as 350 watt is rated power(O/P).

Given Motor power 350watts

work done = 350 * 7200

=2520000/1000 (one unit = 1000watts for one hour)

=2520 units

You cannot calculate power consumption easily, it depends on what load it is running at. Your wording also implies confusion between power (rate of work in watts or kW) and energy consumed (watt-hours, or kWh normally, not joules). You can calculate approximately if you estimate the load value.

e.g.

If 100% load and 87.5% efficiency, then total consumption is (350/0.875)*7200/1000 = 2,800kWh. Rate of work is 350/0.875=400W or 0.4kW.

If 50% load and 84%, this is ((350/2)/0.84)*7200/1000 = 1,500kWh. 208W or 0.28kW.

Do you know the load and why do you ask? Your question is very incomplete and lacking in information to sensibly assist you - please add more details.

If you want to know the actual consumption, it's relatively easy to just measure it.

It's homework! Look at the structure of the question.

Sure you're right - thanks.

A bit of feedback would be well received sometimes, too, wouldn't it? Info into a black hole.........

cheers

if you used your motor at its power rating (350W) so you have consumed 350 x 7200 = 2520000 Watt hours or 2.52 MWh