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When an incandescent electric bulb glows
- a)The electric energy is completely converted into light
- b)The electric energy is partly converted into light energy and partly into heat energy
- c)The light energy is converted into electric energy
- d)The electric energy is converted into magnetic energy
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
When an incandescent electric bulb glowsa)The electric energy is compl...
When current flows through the filament of incandescent electric bulb, it gets heated up. Soon it becomes white hot and starts emitting light.
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When an incandescent electric bulb glowsa)The electric energy is compl...
Explanation:
Electric Bulb Working Principle:
- An incandescent electric bulb works based on the principle of incandescence, where a filament made of tungsten is heated by passing an electric current through it.
Conversion of Energy:
- When the electric current passes through the filament, it encounters resistance which causes the filament to heat up.
- The heated filament emits light due to its high temperature, resulting in the production of light energy.
- However, not all the electric energy is converted into light energy. Some of the energy is also lost in the form of heat energy due to the resistance in the filament.
Energy Conversion:
- Therefore, in an incandescent electric bulb, the electric energy is partly converted into light energy (which produces the desired light output) and partly into heat energy (which is considered as wasted energy).
- This is why incandescent bulbs are not very energy-efficient compared to other lighting options like LED bulbs, which convert a higher percentage of electric energy into light energy and produce less heat.
In conclusion, the glowing of an incandescent electric bulb involves the conversion of electric energy into both light energy and heat energy, with a significant portion of energy being lost as heat.
Electric Bulb Working Principle:
- An incandescent electric bulb works based on the principle of incandescence, where a filament made of tungsten is heated by passing an electric current through it.
Conversion of Energy:
- When the electric current passes through the filament, it encounters resistance which causes the filament to heat up.
- The heated filament emits light due to its high temperature, resulting in the production of light energy.
- However, not all the electric energy is converted into light energy. Some of the energy is also lost in the form of heat energy due to the resistance in the filament.
Energy Conversion:
- Therefore, in an incandescent electric bulb, the electric energy is partly converted into light energy (which produces the desired light output) and partly into heat energy (which is considered as wasted energy).
- This is why incandescent bulbs are not very energy-efficient compared to other lighting options like LED bulbs, which convert a higher percentage of electric energy into light energy and produce less heat.
In conclusion, the glowing of an incandescent electric bulb involves the conversion of electric energy into both light energy and heat energy, with a significant portion of energy being lost as heat.
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When an incandescent electric bulb glowsa)The electric energy is compl...
When current flows through the filament of incandescent electric bulb, it gets heated up. Soon it becomes white hot and starts emitting light.
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When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer?
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When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer?.
When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer?.
Solutions for When an incandescent electric bulb glowsa)The electric energy is completely converted into lightb)The electric energy is partly converted into light energy and partly into heat energyc)The light energy is converted into electric energyd)The electric energy is converted into magnetic energyCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence.
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