## 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 234

In the special case of steady currents, these become V-Jr=0 and ii-(J/2-J/1)=0 (12

-21) Since free charges, and thus

some control, they are usually the ones in which we are most interested, and, ...

In the special case of steady currents, these become V-Jr=0 and ii-(J/2-J/1)=0 (12

-21) Since free charges, and thus

**free currents**, are the ones over which we havesome control, they are usually the ones in which we are most interested, and, ...

Page 362

In (20-10), we found a current density Jm = VxM, which is associated with the

presence of matter and, as we found it useful ... to divide currents arising from

moving charges into the two broad classes of magnetization currents and

In (20-10), we found a current density Jm = VxM, which is associated with the

presence of matter and, as we found it useful ... to divide currents arising from

moving charges into the two broad classes of magnetization currents and

**free****currents**...Page 364

showing us that H can have sources associated with the Amperian currents of

matter as well as

conditions satisfied by the normal components of H can be most easily obtained

from ...

showing us that H can have sources associated with the Amperian currents of

matter as well as

**free currents**. We will return to this point later. The boundaryconditions satisfied by the normal components of H can be most easily obtained

from ...

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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