## Electromagnetic fieldsThis revised edition provides patient guidance in its clear and organized presentation of problems. It is rich in variety, large in number and provides very careful treatment of relativity. One outstanding feature is the inclusion of simple, standard examples demonstrated in different methods that will allow students to enhance and understand their calculating abilities. There are over 145 worked examples; virtually all of the standard problems are included. |

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Page 350

magnetic dipole moment of this system. 19-4 A dielectric sphere of radius a has a

constant surface charge density o on all parts of its surface. It is rotated about a ...

**Assume**that the charge distribution is not affected by the rotation and find themagnetic dipole moment of this system. 19-4 A dielectric sphere of radius a has a

constant surface charge density o on all parts of its surface. It is rotated about a ...

Page 393

For simplicity, we

radius that the electric field E can be taken to be uniform and confined entirely to

the ...

For simplicity, we

**assume**a vacuum between the plates, and, as usual, we also**assume**that the separation between the plates is so small compared with theradius that the electric field E can be taken to be uniform and confined entirely to

the ...

Page 34

If we let r be the displacement of the electron from its equilibrium position, we can

Kr= — rn,w°2|' where mo is the natural frequency of oscillation of the charge.

If we let r be the displacement of the electron from its equilibrium position, we can

**assume**a mechanical restoring force Fm as we did in (B-7); we write it as Fm = —Kr= — rn,w°2|' where mo is the natural frequency of oscillation of the charge.

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amplitude angle assume axes axis becomes bound charge boundary conditions bounding surface calculate capacitor charge density charge distribution charge q circuit conductor consider constant coordinates corresponding Coulomb’s law cross section current density current element cylinder defined dielectric displacement distance electric field electromagnetic electrostatic energy equal evaluate example Exercise expression field point Flgure flux force free currents frequency function Galilean transformation given incident induction infinitely long integral integrand length located loop Lorentz Lorentz transformation magnetic dipole magnitude material Maxwell’s equations medium normal components obtained origin parallel particle perpendicular plane wave plates point charge polarized position vector produced quadrupole quantities radiation radius rectangular reﬂected region relation result rotation satisfy scalar potential shown in Figure solenoid sphere substitute surface charge surface current tangential components transformation unit vacuum vector potential velocity volume write written xy plane zero