Question

Write the energy change in the following cases
An electric generator
ii. Bursting of crackers
Unwinding of a watch spring
IV. Charging a cell
V.Microphone​

Answer 1

i)Electrical generator-Electrical energy to mechanical energy

ii)Bursting of crackers-Chemical energy to heat and light energy

iii)Unwinding of a watch spring-Elastic potential energy to kinetic energy

iv)Charging a cell-Electrical energy to chemical energy

v)Microphone-Electric energy to sound energy

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