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magnetic field due to moving charge questions with solutions
Practice Magnetic effect of current for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
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- IntegermediumMagnetic effect of current
An electron in a hydrogen atom moves with speed 6.76 × 10⁶ m s⁻¹ in an orbit of radius 0.52 Å. Find the magnetic field at the nucleus, in tesla.
15 April 2023 Morning Shift
Open question & full solution → - NumericmediumMagnetic effect of current
A hollow, right circular cone of base radius R and height h, with its tip at the origin is rotating about the Z-axis with an angular velocity ω, as shown in the figure. The cone carries a total charge Q uniformly distributed on its curved surface. The magnitude of magnetic field at a point (0,0,z), where z ≫ R and z ≫ h, is n μ₀QR²ω/(4πz³). The value of n is:
JEE Advanced2026Paper 1
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