Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
Two solenoids are given $-1$ st has 1 turn per unit length and 2 nd has $\mathrm{n}$ turns per unit length. Ratio of magnetic fields at their centres is
PhysicsMagnetic Effects of CurrentVITEEEVITEEE 2016
Options:
  • A $\mathrm{n}: 1$
  • B $1: \mathrm{n}$
  • C $1: \mathrm{n}^{2}$
  • D $\mathrm{n}^{2}: 1$
Solution:
2473 Upvotes Verified Answer
The correct answer is: $1: \mathrm{n}$
Magnetic field $\propto$ no. of turns per unit length
$\therefore \quad$ Required ratio $=1: \mathrm{n}$.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.