JEE Main 2024PhysicsMathematics in PhysicsEasyMCQ

JEE Main 2024 — Mathematics in Physics Question with Solution

JEE Main 2024 (29 Jan Shift 1)

Question

The resistance R=VI, where V=(200±5) V and I=(20±0.2) A, the percentage error in the measurement of R is :

Choose an option

Show full solutionCorrect option: A
Correct answer
A3.5%

Step-by-step explanation

Given that, R=VI

According to error analysis

dRR=dVV+dII⇒dRR=5200+0.220⇒dRR=7200

Thus, the percentage error can be calculated as follows:

% error =dRR×100=7200×100=3.5%

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About this question

This is a previous-year question from JEE Main 2024, covering the Mathematics in Physics 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.