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Question
A battery lights a bulb. Describe the energy changes involved in the process.
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Solution
- When a bulb is connected to a battery, then the chemical energy of the battery is transferred into electrical energy.
- When the bulb receives this electrical energy, then it converts it into light and heat energy.
- Hence, the transformation of energy in the given situation can be shown as:
Chemical Energy → Electrical Energy → Light Energy + Heat Energy
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