In an electric cell while in use, the change in energy is from:

(a) electrical to mechanical

(b) electrical to chemical

(c) chemical to mechanical

(d) chemical to electrical

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Solution

Chemical energy is converted into electrical energy.
Option D is correct

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In an electric motor, the energy transformation is
(a) from electrical to chemical
(b) from chemical to light
(c) from mechanical to electrical
(d) from electrical to mechanical.

Q. An electric generator converts:

(a) electrical energy into mechanical energy.
(b) mechanical energy into heat energy.
(c) electrical energy into chemical energy.
(d) mechanical energy into electrical energy.

An electric generator converts :

(a) electrical energy into mechanical energy

(b) mechanical energy into hear eneregy

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Q. There are a number of devices in common use that change energy from one form to another. Name some devices that change

1.Electrical energy into light energy

2.Electrical energy into mechanical energy

3.Electrical energy into heat

4. Sound energy into electrical energy

5. Chemical energy into electrical energy.

Match the entries of column I with column II

Device/Machine	Energy Conversion
(a) Hand blender	(i) $E l e c t r i c a l \to H e a t$
(b) Flashlight	(ii) $C h e m i c a l \to H e a t \to M e c h a n i c a l$
(c) Electric kettle	(iii) $E l e c t r i c a l \to M e c h a n i c a l$
(d) Steam engine	(iv) $C h e m i c a l \to E l e c t r i c a l \to L i g h t$

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Energy Transformation

Standard X Physics

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In an electric cell while in use, the change in energy is from: (a) electrical to mechanical (b) electrical to chemical (c) chemical to mechanical (d) chemical to electrical

Chemical energy is converted into electrical energy. Option D is correct

In an electric cell while in use, the change in energy is from:

(a) electrical to mechanical

(b) electrical to chemical

(c) chemical to mechanical

(d) chemical to electrical

Chemical energy is converted into electrical energy.
Option D is correct