NEET Exam > NEET Questions > A coil has reistance 25 ohm and 25.17 ohm at ...
Start Learning for Free
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient?
Most Upvoted Answer
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 ...
To calculate the temperature coefficient of resistance, we can use the formula:
Temperature Coefficient Formula
The formula for the temperature coefficient of resistance (α) is given by:
α = (R2 - R1) / (R1 * (T2 - T1))
Where:
- R1 = Resistance at initial temperature (T1)
- R2 = Resistance at final temperature (T2)
- T1 = Initial temperature
- T2 = Final temperature
Given Values
- R1 = 25.00 Ω (at 20°C)
- R2 = 25.17 Ω (at 35°C)
- T1 = 20°C
- T2 = 35°C
Calculating the Temperature Coefficient
1. **Calculate Change in Resistance (ΔR)**:
ΔR = R2 - R1 = 25.17 Ω - 25.00 Ω = 0.17 Ω
2. **Calculate Change in Temperature (ΔT)**:
ΔT = T2 - T1 = 35°C - 20°C = 15°C
3. **Substitute Values into the Formula**:
α = (0.17 Ω) / (25.00 Ω * 15°C)
4. **Perform Calculation**:
α = 0.17 / 375 = 0.0004533 per °C
Final Result
The temperature coefficient of resistance (α) is approximately:
α ≈ 0.0004533 °C⁻¹
This indicates that the resistance of the coil increases by about 0.04533% for each degree Celsius increase in temperature.
Conclusion
Understanding the temperature coefficient is crucial for applications where temperature changes affect electrical resistance, ensuring the reliable performance of electrical components.
Temperature Coefficient Formula
The formula for the temperature coefficient of resistance (α) is given by:
α = (R2 - R1) / (R1 * (T2 - T1))
Where:
- R1 = Resistance at initial temperature (T1)
- R2 = Resistance at final temperature (T2)
- T1 = Initial temperature
- T2 = Final temperature
Given Values
- R1 = 25.00 Ω (at 20°C)
- R2 = 25.17 Ω (at 35°C)
- T1 = 20°C
- T2 = 35°C
Calculating the Temperature Coefficient
1. **Calculate Change in Resistance (ΔR)**:
ΔR = R2 - R1 = 25.17 Ω - 25.00 Ω = 0.17 Ω
2. **Calculate Change in Temperature (ΔT)**:
ΔT = T2 - T1 = 35°C - 20°C = 15°C
3. **Substitute Values into the Formula**:
α = (0.17 Ω) / (25.00 Ω * 15°C)
4. **Perform Calculation**:
α = 0.17 / 375 = 0.0004533 per °C
Final Result
The temperature coefficient of resistance (α) is approximately:
α ≈ 0.0004533 °C⁻¹
This indicates that the resistance of the coil increases by about 0.04533% for each degree Celsius increase in temperature.
Conclusion
Understanding the temperature coefficient is crucial for applications where temperature changes affect electrical resistance, ensuring the reliable performance of electrical components.
Community Answer
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 ...
0.067 per degree Celsius
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient?
Question Description
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient?.
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient?.
Solutions for A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? defined & explained in the simplest way possible. Besides giving the explanation of
A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient?, a detailed solution for A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? has been provided alongside types of A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? theory, EduRev gives you an
ample number of questions to practice A coil has reistance 25 ohm and 25.17 ohm at 20 degree Celsius and 35 degree Celsius what is temperature coefficient? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET 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