## 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 261

At large

13(1): “Z 3 2 (14-20) z and varies inversely as the cube of the

respect, it is similar to the electric field of a dipole as we saw in (10-35), for

example ...

At large

**distances**from the circle, that is, for z>>a, (14-18) approximates to I 'a213(1): “Z 3 2 (14-20) z and varies inversely as the cube of the

**distance**z. In thisrespect, it is similar to the electric field of a dipole as we saw in (10-35), for

example ...

Page 480

(In radio transmission, the

called the “skip

the incident wave has been “reflected” from the plasma. At the

)=90° ...

(In radio transmission, the

**distance**between the point of origin and return iscalled the “skip

**distance**,” and it can be many hundreds of kilometers.) In effect,the incident wave has been “reflected” from the plasma. At the

**distance**z,,,, 0,,(z,,,)=90° ...

Page 570

It is helpful to express our results in terms of the

the angle 0 made by r with the direction of the velocity. We see from the figure

that x = rcos0 whiley2+ z2= r2sin20 so that y2x2+y2+z2=rLy2(1—B2sin20) (28-

150) ...

It is helpful to express our results in terms of the

**distance**r from the charge andthe angle 0 made by r with the direction of the velocity. We see from the figure

that x = rcos0 whiley2+ z2= r2sin20 so that y2x2+y2+z2=rLy2(1—B2sin20) (28-

150) ...

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