Q. 16 A4.9( 8 Votes )

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

Answer :

When the bulb is connected to the battery the chemical energy of the battery is converted into the electrical energy. When bulb receives this electrical energy it converts it into light and heat energy. The figure below shows the energy transformation in more descriptive way.

Chemical Energy Electrical Energy Light Energy + Heat Energy

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