Alloys such constantan manganic |ProjectileMotionJEEMain2022

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JEE MAIN 2022

29-07-2022 S2

Question

Given below are two statements : one is labeled as
Assertion A and the other is labeled as Reason 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.

Select the correct option:

A

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

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

(Theory based)

Question Tags

JEE Main

Physics

Easy

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