State the energy changes in the following while in use.

(a) An electric bulb (b) An electric oven

(c) A loud speaker (d) A microphone

(e) An electric motor

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1 Answers

(a) An electric bulb — Electrical to light energy

(b) An electric oven — Electrical to heat energy

(c) A loud speaker — Electrical to sound energy

(d) A microphone — Electrical to sound energy

(e) An electric motor — Mechanical to’aHcaI energy

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