5) An insulating disk of radius R = 30cm has a total charge Q Q is not evenly distributed over the surface ofthe disk and surface dharge density of the disk is given by the expression o = Ar2. Where A is a constant and r is = 30C. The charge the radial distance from the center of the disk. The disk is rotating about the y- axis with the angular speed w = 30rad, What is the energy of this magnetic dipole if placed in a homogen magnetic field given as B = -2î + 3j- 2k in the %3D space. a)-3 Joule b)-24 Joule c)-81 Joule d) -192 Joule
5) An insulating disk of radius R = 30cm has a total charge Q Q is not evenly distributed over the surface ofthe disk and surface dharge density of the disk is given by the expression o = Ar2. Where A is a constant and r is = 30C. The charge the radial distance from the center of the disk. The disk is rotating about the y- axis with the angular speed w = 30rad, What is the energy of this magnetic dipole if placed in a homogen magnetic field given as B = -2î + 3j- 2k in the %3D space. a)-3 Joule b)-24 Joule c)-81 Joule d) -192 Joule
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Transcribed Image Text:5)
An insulating disk of radius R= 30cm has a total charge Q = 30C. The charge
Q is not evenly distributed over the surface of the disk and surface charge density
of the disk is given by the expression o = Ar² . Where A is a constant and r is
the radial distance from the center of the disk. The disk is rotating about the y-
axis with the angular speed w =
30rad, What is the energy of this magnetic
dipole if placed in a homogen magnetic field given as B = -2î + 3j - 2k in the
space.
a)-3 Joule
b)-24 Joule
c)-81 Joule
d) -192 Joule
e) 375 Joule
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