Skip to content
PhysicsNEET 2023Biot–Savart and Ampère's laws

Moving Charges and Magnetism

A very long conducting wire is bent into a semicircular shape from A to B as shown in the figure. The magnetic field at point P for the steady current configuration is given by:

Question 50 as printed in the NEET 2023 booklet

  1. A.μ0i4R\dfrac{\mu_0 i}{4R}, pointed into the page
  2. B.μ0i4R\dfrac{\mu_0 i}{4R}, pointed away from the page
  3. C.μ0i4R(1−2π)\dfrac{\mu_0 i}{4R}\left(1 - \dfrac{2}{\pi}\right), pointed away from the page✓
  4. D.μ0i4R(1−2π)\dfrac{\mu_0 i}{4R}\left(1 - \dfrac{2}{\pi}\right), pointed into the page

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

From Physics › Moving Charges and Magnetism › Biot–Savart and Ampère's laws — lectures, notes and every past question on it.

Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsAppTelegram