what are necessary condition for work to be done?An electric bulb of 60W is lighted for 10hr.what is the amount to be paid in 30 days.if 1 unit cost is 3.5
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Conditions necessary for work to be are:
1. A force should act on an object.
2. The object must be displaced.
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force and displacement
P=60w
t=10hr for 30 days
1unit cost=3.5=1kwhr
1day=24hr
1kwhr=1000watt hr
amount= 60×10×30×24×3.5
= 18000×24×3.5
=432000×3.5
=1512000
=1512kwhr
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