Question
Name a device which changes

Answer

(a) Chemical energy into light energy – Voltaic cell
(b) Electric energy into heat energy – Electric bulb
(c) Heat energy into Electric energy – Electric generator.
(d) Electric energy into magnetic energy – Electromagnet
(e) Electric energy into light energy – Electric bulb
(f) light energy into electric energy – Photo-voltaic cell
(g) Electric energy into sound energy – Loudspeaker
(h) light energy into chemical energy – Photosynthesis

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