## 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 96

In summary, we have E„(r)*0 E,(r) = 0 <f>(r) = const. on surface of a conductor (6-

2) (It may happen, of course, that at a particular point or points on the surface, the

normal component E„ may also be

In summary, we have E„(r)*0 E,(r) = 0 <f>(r) = const. on surface of a conductor (6-

2) (It may happen, of course, that at a particular point or points on the surface, the

normal component E„ may also be

**zero**, but, in any event, it is the only ...Page 212

By comparing (1 1-68) and (11-71), we see that if P is positive, the term varying

like e& cannot appear because it does not vanish at infinity so that bt(P) must be

By comparing (1 1-68) and (11-71), we see that if P is positive, the term varying

like e& cannot appear because it does not vanish at infinity so that bt(P) must be

**zero**. On the other hand, if P is negative, b2(P) must be**zero**. In both cases, the ...Page 217

Since the sum must be

plausible that this can be the case only if each term in the sum is itself

, if all of the C, are

let ...

Since the sum must be

**zero**for any arbitrary value of the angle 9, it seemsplausible that this can be the case only if each term in the sum is itself

**zero**, that is, if all of the C, are

**zero**. We can easily show that this is the case. In (1 1-103), welet ...

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angle assume axis becomes bound charge boundary conditions bounding surface calculate capacitance charge density charge distribution charge q circuit conductor consider const constant corresponding Coulomb's law cross section current density current element curve cylinder defined dielectric direction displacement distance electric field electromagnetic electrostatic energy equal equipotential evaluate example Exercise expression field point flux force free charge free currents frequency function given illustrated in Figure induction infinitely long integral integrand Laplace's equation line charge located Lorentz Lorentz transformation magnitude material Maxwell's equations molecule normal components obtained origin particle perpendicular plane wave point charge polarized position vector potential difference propagation properties quadrupole quantities radiation region relation result satisfy scalar potential shown in Figure situation solenoid spherical substitute surface current surface integral tangential components total charge unit vacuum vector potential velocity volume write written xy plane zero