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Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,
Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.
Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.
- a)Both A and R are true and R is a correct explanation of A.
- b)Both A and R are true but R is not a correct explanation of A.
- c)A is true but R is false.
- d)A is false but R is true.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Assertion (A): Manganin is an alloy of copper, manganese and nickel an...
Understanding the Assertion (A)
Manganin is indeed an alloy comprising copper, manganese, and nickel. This specific combination gives it unique properties that are highly valued in electrical applications.
Evaluating the Reason (R)
The reason provided states that manganin has an almost zero temperature coefficient of resistance and shows no aging effect.
Conclusion: Why Option A is Correct
Both the assertion and reason are true, and the reason correctly explains why manganin is preferred in precision applications. The properties of manganin, primarily its minimal temperature coefficient and stability over time, contribute significantly to its usage as a resistance material.
Thus, the correct answer is:
Option A: Both A and R are true and R is a correct explanation of A.
Manganin is indeed an alloy comprising copper, manganese, and nickel. This specific combination gives it unique properties that are highly valued in electrical applications.
- Manganin is widely recognized for its stability and reliability.
- It is predominantly used in precision resistors and resistance measuring instruments.
Evaluating the Reason (R)
The reason provided states that manganin has an almost zero temperature coefficient of resistance and shows no aging effect.
- Zero temperature coefficient of resistance means that the resistance of manganin remains almost constant with temperature changes, making it ideal for precision applications.
- The lack of aging effect implies that its resistive properties do not degrade over time, ensuring long-term accuracy.
Conclusion: Why Option A is Correct
Both the assertion and reason are true, and the reason correctly explains why manganin is preferred in precision applications. The properties of manganin, primarily its minimal temperature coefficient and stability over time, contribute significantly to its usage as a resistance material.
Thus, the correct answer is:
Option A: Both A and R are true and R is a correct explanation of A.
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Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?.
Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Manganin is an alloy of copper, manganese and nickel and is universally used as resistance material for precision resistors and for resistance measuring apparatus,Reason (R): The foremost property of manganin is that it has almost zero temperature coefficient of resistance near about room temperature. Moreover, it shows no ageing effect.a)Both A and R are true and R is a correct explanation of A.b)Both A and R are true but R is not a correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?.
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