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A battery lights a bulb. Describe the energy changes involved in the process.

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A battery is a device which converts chemical energy stored in it to electrical energy and further gets converted to light energy and heat energy.
This is the reason why bulbs after some time gets heated up.
The energy change can be written as

Final Answer:
A battery is a device which converts chemical energy stored in it to electrical energy and further gets converted to light energy and heat energy.

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