## 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 294

These relations can be used to obtain approximate

where the general case is too hard to solve exactly while special cases are easy

to do. As an example, consider the circle carrying a current. We found the

induction ...

These relations can be used to obtain approximate

**expressions**for B in caseswhere the general case is too hard to solve exactly while special cases are easy

to do. As an example, consider the circle carrying a current. We found the

induction ...

Page 345

In this way, we obtain a commonly found

energy u,,,,,=fV.1(1-)-A,(r)d- (19-35) where the integral is taken over the whole

volume containing the currents J of the system of interest. As in Section 8-4, we

will ...

In this way, we obtain a commonly found

**expression**for the magnetic interactionenergy u,,,,,=fV.1(1-)-A,(r)d- (19-35) where the integral is taken over the whole

volume containing the currents J of the system of interest. As in Section 8-4, we

will ...

Page 416

We see from the first

centimeter apart will repel each other with a force of 1 dyne; the unit of charge

defined in this way is called a statcoulomb (from electrostatic). The unit of current

...

We see from the first

**expression**in (23-6) that two equal tmit charges a distance 1centimeter apart will repel each other with a force of 1 dyne; the unit of charge

defined in this way is called a statcoulomb (from electrostatic). The unit of current

...

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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