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A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9Ω at 100C. The temperature coefficient of resistivity of material of the wire is
  • a)
    1.06 × 10−3∘C−1
  • b)
    3.5 × 10−2∘C−1
  • c)
    2.22 × 10−3∘C−1
  • d)
    3.95 × 10−2∘C−1
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9&O...
Here, R1 = 2.5Ω, T1 = 28C
R2 = 2.9Ω and T= 100C
As R2 = R1[1 + α(T2 − T1)]
∴ 2.9 = 2.5[1 + α(100 − 28)]


= 2.22 × 10−3∘C−1
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A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9Ω at 100C. The temperature coefficient of resistivity of material of the wire isa)1.06 × 10−3C−1b)3.5 × 10−2C−1c)2.22 × 10−3C−1d)3.95 × 10−2C−1Correct answer is option 'C'. Can you explain this answer?
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A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9Ω at 100C. The temperature coefficient of resistivity of material of the wire isa)1.06 × 10−3C−1b)3.5 × 10−2C−1c)2.22 × 10−3C−1d)3.95 × 10−2C−1Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9Ω at 100C. The temperature coefficient of resistivity of material of the wire isa)1.06 × 10−3C−1b)3.5 × 10−2C−1c)2.22 × 10−3C−1d)3.95 × 10−2C−1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A wire has a resistance of 2.5Ω at 28C and a resistance of 2.9Ω at 100C. The temperature coefficient of resistivity of material of the wire isa)1.06 × 10−3C−1b)3.5 × 10−2C−1c)2.22 × 10−3C−1d)3.95 × 10−2C−1Correct answer is option 'C'. Can you explain this answer?.
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