Q12 of 146 Page 162

A cell converts one form of energy into another form. Name the two forms.

.A cell converts Chemical energy into Electrical energy. A cell is a power supply that uses chemical energy to make electricity.


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10

Name the quantity whose unit is:

(a) Kilowatt


(b) Kilowatt – hour

 11

What is the common name of ‘1 kWh of electrical energy’?

 13

Name the device which converts electrical energy into mechanical energy.

 14

Name the devices or machines which convert:

(a) Mechanical energy into electrical energy.


(b) Chemical energy into electrical energy.


(c) Electrical energy into heat energy.


(d) Electrical energy into light energy.