Question

Energy change in devices​

Answer 1

Energy Transformation Devices – Equipments used to Transform Energy.

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S.No Equipment Energy Transformed

1. Dynamo Mechanical energy into electrical energy

2. Electric motor Electrical energy into mechanical energy

3. Microphone Sound energy into electrical energy

4. Loud speaker Electrical energy into sound energy

Answer 2

Answer:

☞ According to law of conservation of energy, energy can't be destroyed nor it can be created it can only be transformed.

☞ And thus, energy changes in devices , i.e, transformed

☞ Example : Take a light bulb. Energy changes occur like Electrical energy → Heat energy → Light energy.