## 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 251

13-3 The Force between Current Elements Although it is often unwise to draw

conclusions about an integrand from the ... (13-16) and the integrand j,/*X(/WXR)

given a natural interpretation as the force exerted on the

the ...

13-3 The Force between Current Elements Although it is often unwise to draw

conclusions about an integrand from the ... (13-16) and the integrand j,/*X(/WXR)

given a natural interpretation as the force exerted on the

**current element**Ids bythe ...

Page 256

By means of this procedure, then, we have introduced another vector field B

which we can calculate at any field point r by means of (14-2) even if there is no

all ...

By means of this procedure, then, we have introduced another vector field B

which we can calculate at any field point r by means of (14-2) even if there is no

**current element**there to have a force on it. Again, as for E, one can regard this asall ...

Page 532

Suppose the first has an oscillating

produced in the other. If we assume that they are far apart, the electric field

produced by the

to write that ...

Suppose the first has an oscillating

**current**/ in it; we want to find the emf Sproduced in the other. If we assume that they are far apart, the electric field

produced by the

**element**Ws, can be obtained from (27-92), but it will be helpfulto write that ...

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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