give one example where electrical energy converted into light energy
Answers
Therefore, energy flow into and out of any energy conversion device can be summarized in the diagram below:
Energy input flows into an Energy Conversion Device and Useful Energy Output and Energy Dissipated to the Surroundings come out of the device.
Energy Flow Diagram for an Energy Conversion Device
When all forms of energy coming out of an energy conversion device are added up, it will be equal to the energy that is put into a device. Energy output must be equal to the input. This means that energy can not be destroyed or created. It can only change its form.
In the case of an electric bulb, the electrical energy is converted to light and heat.
The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).
