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  • Given below are two statements: one is labelled as Assertion and the other is labelled as Reason <img

Given below are two statements: one is labelled as Assertion \mathbf{A} and the other is labelled as Reason \mathbf{R}.
Assertion A: Alloys such as constantan and manganin are used in making standard resistance coils.
Reason R: Constantan and manganin have very small value of temperature coefficient of resistance.
In the light of the above statements, choose the correct answer from the options given below.
 

Option: 1

Both A and R are true and R is the correct explanation of A.
 


Option: 2

Both A and R are true but R is NOT the correct explanation of A.
 


Option: 3

A is true but R is false.
 


Option: 4

A is false but R is true.


Answers (1)

best_answer

\rightarrow As constantan and manganin has very small value of temperature coefficient of resistance they are used in making standard resistance coils.

\rightarrow Both \mathrm{A \: and \: R} are true and \mathrm{ \: R} is the correct explanation of \mathrm{ A}

Hence 1 is correct option

Posted by

Pankaj

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