Physics
Grade-9
Easy
Question
Electrical energy is changed to ____ in light bulbs.
- Heat energy
- Light energy
- Both a and b
- Chemical energy
Hint:
The electrical energy generated in a circuit is converted into other useful forms of energy.
The correct answer is: Both a and b
Electrical energy is changed to heat (thermal) energy and light energy in light bulbs.
- The electrical energy generated in a circuit is transformed into other useful forms of energy.
- It depends on the electric load.
- In the bulbs, the electric energy is converted into heat (thermal) energy.
- Since light is electromagnetic energy, electrical energy can be changed into light energy.
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