## 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 56

(2-29) 477-e0r2 [This also follows from (1-90) and (1-93) since the location of q in

Figure 2-7 corresponds to the special case 0 = 0.] Exercises 2-1 Two point

(2-29) 477-e0r2 [This also follows from (1-90) and (1-93) since the location of q in

Figure 2-7 corresponds to the special case 0 = 0.] Exercises 2-1 Two point

**charges q**' and — q' are on the x axis with coordinates a and — a, respectively.Page 93

expression, it can equally well be interpreted as the work required to bring

infinity to f while holding

regard Ue as the mutual potential energy of the system of the two

...

expression, it can equally well be interpreted as the work required to bring

**Q**frominfinity to f while holding

**q**fixed at r. In other words, it is more appropriate toregard Ue as the mutual potential energy of the system of the two

**charges**rather...

Page 123

potential difference will be

dq. Then add all these work increments from the initial uncharged state to the

final completely

of ...

potential difference will be

**q**/C. Find the work required to increase the**charge**bydq. Then add all these work increments from the initial uncharged state to the

final completely

**charged**state and thus obtain (7-21) again. 7-4 Find the energyof ...

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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