JEE Main 2004 — Magnetic Effects of Current Question with Solution
JEE Main 2004
Question
Two long conductors, separated by a distance carry current and in the same direction. They exert a force on each other. Now the current in one of them increased to two times and its direction reversed. The distance is also increased to . The new value of the force between them is
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Force between two long conductor carrying current
According to question
From equation (i) and (ii), .
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Magnetic Effects of Current chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2004, covering the Magnetic Effects of Current 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.