The cyclist gets chemical energy from the food.
Peddling transfers mechanical energy to the Dynamo.
Electrical energy is transferred through the wires.
The bulb transfers energy to the room by converting electrical energy into light energy and heat
The sun is a store of solar energy.
Energy is transferred to solar cell by solar panel.
Electrical energy is transferred through the wires.
Energy is transferred to water by conduction.
The water is a store of hydro energy.
Energy is transferred to room by heat energy.
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