Q3 of 55 Page 363

Write true or false for the following statements :

Kilowatt hour is the unit of power.

False

Explanation: kilowatt hour is the commercial unit of energy. 1 kilowatt hour is the amount of electrical energy consumed when the appliance have power rating of 1 kilowatt which is used for 1 hour.


SI Unit of power is watt and its larger unit is kilowatt.


More from this chapter

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1

Write true or false for the following statements :

When energy changes from one form to another, the energy that disappears from one form, reappears in exactly equivalents amount in the other form.

 2

Write true or false for the following statements :

A force does not work, if it produces no motion.

 4

Write true or false for the following statements :

Work and energy have different units.

 5

Write true or false for the following statements :

In order to get minimum work, the angle between force and displacement should be 90.