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Why are constantan and manganin used for...

Why are constantan and manganin used for making standard resistances ?

A

Both (A) and (R) are true and (R) is the correct explanantion of A.

B

Both (A) and (R) are true but (R) is not the correct explanation of A.

C

(A) is true but (R) is false

D

(A) is false but (R) is true.

Text Solution

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The correct Answer is:
A
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