JEE Advanced 2026 — Physics Electromagnetism
A circular loop of radius $R$ carries current $I$. The magnetic field at a point on the axis at distance $x$ from the center is:
Verified 30 May 2026.
$\frac{\mu_0 I R^2}{2(R^2 + x^2)^{3/2}}$
$\frac{\mu_0 I}{2R}$
$\frac{\mu_0 I R}{2(R^2 + x^2)}$
$\frac{\mu_0 I x^2}{2R^3}$
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
A charged particle enters a uniform magnetic field perpendicular to its velocity. The path of the particle is:
What is the direction of the magnetic field of the wave?
Find the wavelength of the wave in nanometres.
The magnetic flux through a coil changes from 5 Wb to 2 Wb in 0.1 s. The induced EMF is
Work through every JEE Advanced Electromagnetism PYQ, year by year.