A solid sphere of radius R carries a uniform charge density, 0, between r 0 and r R and an equal charge density of opposite sign, 0, between r R and r R The sphere rotates about its diameter with angular velocity Derive an expression for the magnetic moment of this rotating sphere ...

For the inner sphere of radius R i Q i 4 0 R i 3 3 And L 2 MR i 2 5 Hence i 4 0 R i 5 ...

A solid sphere of radius R carries a uniform charge density, +0, between r = 0 and

Question:

A solid sphere of radius R carries a uniform charge density, +ρ0, between r = 0 and r = ½ R and an equal charge density of opposite sign, –ρ0, between r = ½R and r = R. The sphere rotates about its diameter with angular velocity ω. Derive an expression for the magnetic moment of this rotating sphere.