A thin circular disk of radius R is uniformly charged with density ρ 0 per unit area. The disk rotates about its axis with a uniform angular speed ω . The magnetic moment of the disk is

Question

A thin circular disk of radius R is uniformly charged with density ρ > 0 per unit area. The disk rotates about its axis with a uniform angular speed ω . The magnetic moment of the disk is, 2 π R 4 ωρ, π R 4 ωρ, π R 4 2 ωρ, π R 4 4 ωρ

MARKS App · Accepted Answer

M L = q 2 m M = q 2 m L M = ρ π R 2 2 m × I ω M = ρ π R 2 2 m × m R 2 2 ω M = 1 4 π R 4 ρ ω

Search any question & find its solution

Looking for more such questions to practice?