Physics · 2023
NEET 2023 · 7 May · Code E3 · Q45
A very long conducting wire is bent in a semi-circular shape from A to B as shown in figure. The magnetic field at point P for steady current…
A very long conducting wire is bent in a semi-circular shape from $\displaystyle A$ to $\displaystyle B$ as shown in figure. The magnetic field at point $\displaystyle P$ for steady current configuration is given by :

Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle \frac{\mu_0 i}{4 R}\left[1-\frac{2}{\pi}\right]$ pointed away from page
More from Moving Charges and Magnetism
- The figure given below shows a long straight solid wire of circular cross-section of radius 'a' carrying…2026
- A 100-turn closely wound circular coil of radius 5 cm has a magnetic field of 3.14 × 10^-3 T at its centre.…2026
- A 2 amp current is flowing through two different small circular copper coils having radii ratio 1: 2. The…2025
- An electron (mass 9 × 10^-31 kg and charge 1.6 × 10^-19 C ) moving with speed c / 100 (c= speed of light ) is…2025
- Two infinitely long parallel conducting wires A and B carry currents I and 2I, respectively, in the same…2026
- A current I_0 flows through a metallic circular loop of radius r as shown in the figure. Resistance of the…2026
- A tightly wound 100 turns coil of radius 10 cm carries a current of 7 A. The magnitude of the magnetic field…2024
- A galvanometer of resistance 100 Ω gives full scale deflection for a current of 1 mA. It is converted into an…2026
NEET (UG) 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.