Question

What are the energy transformation that occur when an electric bulb is switched on​

Answer 1

Electric energy changes into light and heat energy.

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Answer 2

When an electric bulb is switched on, electrical energy gets transformed into heat and light energy.

• An electric bulb is connected to two ends of a circuit.
• When the circuit is closed (switched on), current flows from the negative terminal to the positive terminal passing through the bulb's filament.
• As electron collision takes place, the filament atoms begin to vibrate.
• This heats up the filament, resulting in the generation of heat energy.
• The heat causes the excitation of the electrons in the atoms.
• This produces electromagnetic radiation, which is in the form of light energy.
• This is how the electrical energy is converted to heat and light energies.