## Principles of Electricity and Electromagnetism |

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Page 289

... for the calculation of fields which possess a high degree of symmetry. From Eq.

(9.2) it is evident that the induction due to a closed circuit can be written – “ss-rail

B = #(and) X di Let us now introduce the vector notation

... for the calculation of fields which possess a high degree of symmetry. From Eq.

(9.2) it is evident that the induction due to a closed circuit can be written – “ss-rail

B = #(and) X di Let us now introduce the vector notation

**curl**v, which is defined ...Page 314

and magnetic induction at any point which forms the basis for the discussion of

the induction of currents in continuous media. The differential equations for the ...

**curl**. E. = –%. (10.3) Ót - This is the differential equation relating the electric fieldand magnetic induction at any point which forms the basis for the discussion of

the induction of currents in continuous media. The differential equations for the ...

Page 542

and u are constants. On taking the

expression for the

E ...

**curl**. H. = 2E. +. #. It will be further assumed, as in the previous sections, that kand u are constants. On taking the

**curl**of Eq. (16.4) and substituting the completeexpression for the

**curl**of H, the following equation is obtained 8 ôE 92E**curl curl**E ...

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alternating current alternating-current amplitude angle angular velocity anode antenna applied approximately armature assumed atom axis calculated capacity cathode centimeter characteristic circuit coefficient coil component condenser conducting conductor considered curl current flowing curve deflection density determined dielectric constant direct-current direction discharge displacement distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic flux force frequency function galvanometer given grad grid hence hysteresis impedance induction integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured meter motor negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potentiometer produced proportional quantity radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque transformer tube unit vector voltage volts wave wire written zero