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Which of these is NOT an example of an appliance using the heating effect of electric current?
- a)Hairdryer
- b)Toaster
- c)LED bulb
- d)Electric room heater
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of these is NOT an example of an appliance using the heating eff...
LED bulbs use electroluminescence to produce light without generating significant heat, unlike devices like hairdryers or toasters that use heating elements.
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Which of these is NOT an example of an appliance using the heating eff...
Understanding the Heating Effect of Electric Current
The heating effect of electric current refers to the phenomenon where electrical energy is converted into heat when an electric current passes through a conductor. This effect is utilized in various appliances for different purposes.
Appliances that Use Heating Effect:
- Hairdryer: A hairdryer converts electrical energy into heat to dry hair. It uses a heating element that gets hot when electricity flows through it, blowing warm air onto the hair.
- Toaster: A toaster employs the heating effect to brown and crisp bread. It has heating coils that become hot enough to toast the bread when electricity is applied.
- Electric Room Heater: An electric room heater works by using the heating effect to warm up a room. It has heating elements that radiate heat, raising the temperature of the surrounding air.
Appliance that Does NOT Use Heating Effect:
- LED Bulb: Unlike the other appliances mentioned, an LED (Light Emitting Diode) bulb primarily converts electrical energy into light rather than heat. While some heat is produced during the operation of an LED, it is designed to be energy-efficient, minimizing heat generation. Thus, the primary function of an LED bulb is illumination, not heating.
Conclusion
In summary, options a, b, and d (Hairdryer, Toaster, and Electric Room Heater) all utilize the heating effect of electric current, while option c (LED Bulb) does not primarily function through heating, making it the correct answer to the question.
The heating effect of electric current refers to the phenomenon where electrical energy is converted into heat when an electric current passes through a conductor. This effect is utilized in various appliances for different purposes.
Appliances that Use Heating Effect:
- Hairdryer: A hairdryer converts electrical energy into heat to dry hair. It uses a heating element that gets hot when electricity flows through it, blowing warm air onto the hair.
- Toaster: A toaster employs the heating effect to brown and crisp bread. It has heating coils that become hot enough to toast the bread when electricity is applied.
- Electric Room Heater: An electric room heater works by using the heating effect to warm up a room. It has heating elements that radiate heat, raising the temperature of the surrounding air.
Appliance that Does NOT Use Heating Effect:
- LED Bulb: Unlike the other appliances mentioned, an LED (Light Emitting Diode) bulb primarily converts electrical energy into light rather than heat. While some heat is produced during the operation of an LED, it is designed to be energy-efficient, minimizing heat generation. Thus, the primary function of an LED bulb is illumination, not heating.
Conclusion
In summary, options a, b, and d (Hairdryer, Toaster, and Electric Room Heater) all utilize the heating effect of electric current, while option c (LED Bulb) does not primarily function through heating, making it the correct answer to the question.
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Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer?.
Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of these is NOT an example of an appliance using the heating effect of electric current?a)Hairdryerb)Toasterc)LED bulbd)Electric room heaterCorrect answer is option 'C'. Can you explain this answer?.
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