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11. Work, Energy and Power
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Q9 of 54 Page 135

What is commercial unit of electrical energy?

The commercial unit of electrical energy is Kilowatt hour(kWh).

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7

The value of the energy of the body which is falling freely towards the earth will be :

8

if the velocity of an object is doubled then what will be kinetic energy :

10

An spring is compressed within its elasticity limit then what will be earned potential energy (spring constant is K)?

11

Define work. Write its unit.

Questions · 54
11. Work, Energy and Power
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