Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > The resistance of insulators __________a)Incr...
Start Learning for Free
The resistance of insulators __________
- a)Increases with increase in temperature
- b)Decreases with increase in temperature
- c)Remains the same with increase in temperature
- d)Becomes zero with increase in temperature
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The resistance of insulators __________a)Increases with increase in te...
In case of an insulator, the energy gap between the conduction band and the valence band is very large. When the temperature is increased, the electrons move from the conduction band to the valence band and hence it starts conducting. When conductance increases, resistance decreases, since C=1/R. Thus, when temperature increases, resistance decreases in insulators.
Most Upvoted Answer
The resistance of insulators __________a)Increases with increase in te...
Insulators are materials that do not conduct electricity easily. Their resistance is very high, and therefore, they are used to prevent current flow in certain parts of electrical circuits. The resistance of insulators varies with temperature, and this is due to the fact that temperature affects the mobility of electrons in the material. The resistance of insulators increases with temperature, and this is because of the following reasons:
Explanation:
Impact of Temperature on Insulators:
When the temperature of an insulator is increased, the following things happen:
1. Increased Vibrations: The atoms and molecules in the insulator start vibrating more vigorously, and this leads to an increase in collisions between the electrons and the atoms. These collisions impede the flow of electrons, and this leads to an increase in resistance.
2. Increased Energy: The energy of the electrons also increases with temperature, and this leads to an increase in their mobility. However, this increase in mobility is offset by the increase in collisions, and therefore, the resistance of the insulator still increases.
3. Breakdown of Insulator: At very high temperatures, the insulator may break down and start conducting electricity. This is because the energy of the electrons becomes high enough to overcome the energy barriers that prevent them from moving freely.
Conclusion:
In conclusion, the resistance of insulators increases with temperature, and this is due to the increase in collisions between the electrons and atoms, as well as the increase in the energy of the electrons. Insulators are therefore not suitable for use in applications where high temperatures are expected, as they may lead to breakdown and failure of the insulation.
Explanation:
Impact of Temperature on Insulators:
When the temperature of an insulator is increased, the following things happen:
1. Increased Vibrations: The atoms and molecules in the insulator start vibrating more vigorously, and this leads to an increase in collisions between the electrons and the atoms. These collisions impede the flow of electrons, and this leads to an increase in resistance.
2. Increased Energy: The energy of the electrons also increases with temperature, and this leads to an increase in their mobility. However, this increase in mobility is offset by the increase in collisions, and therefore, the resistance of the insulator still increases.
3. Breakdown of Insulator: At very high temperatures, the insulator may break down and start conducting electricity. This is because the energy of the electrons becomes high enough to overcome the energy barriers that prevent them from moving freely.
Conclusion:
In conclusion, the resistance of insulators increases with temperature, and this is due to the increase in collisions between the electrons and atoms, as well as the increase in the energy of the electrons. Insulators are therefore not suitable for use in applications where high temperatures are expected, as they may lead to breakdown and failure of the insulation.
Free Test
FREE
| Start Free Test |
Community Answer
The resistance of insulators __________a)Increases with increase in te...
The resistance of insulators
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer?
Question Description
The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer?.
The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The resistance of insulators __________a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Remains the same with increase in temperatured)Becomes zero with increase in temperatureCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup