JEE Main 2022 — Current Electricity Question with Solution
From: JEE Main 2022 (Online) 29th July Evening Shift
Question
Given below are two statements: one is labelled as Assertion A and the other is labelled 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.
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
Since they have low temperature coefficient of resistance, their resistance remains almost constant.
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This is a previous-year question from JEE Main 2022, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.