Q. 273.9( 9 Votes )
Name the energy transfers which occur when:
(a) An electric bell rings
(b) Someone speaks into a microphone
(c) There is a picture on a television screen
(d) A torch is on
Answer :
(a) Electrical energy is converted into Sound energy when an electric bell rings
(b) Sound energy is converted into Electrical energy
(c) Electrical energy is converted into light energy (and Heat energy)
(d) Chemical energy is converted into electrical energy to light energy (and Heat energy)
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