State the principles of the following—
1. Electric heater. 2. Electric geyser. 3. Refrigerator. 4. Electric Bulb. 5. Electric Generator.
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(a) Electrical energy into sound energy
(b) Heat energy into mechanical energy
(c) Sound energy into electrical energy
(d) Electrical energy to mechanical energy
(e) Electrical energy into light energy
(f) Chemical energy to heat energy
(g) Light energy into electrical energy
(h) Chemical energy into heat energy
(i) Chemical energy into electrical energy
(j) Chemical energy to mechanical energy
(k) Electrical energy into heat energy
(I) Light energy into electrical energy (m)Electrical energy into magnetic energy.
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Answer:
Electric current
Chemical change
Physical change
Chemical change
Physical change
Physical change
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