## Principles of Electricity and Electromagnetism |

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Page 30

This is known as

charge-free region is reduced to the problem of finding the appropriate solution of

this equation. The lEp=0 at surface of values of V and its derivatives at the ...

This is known as

**Laplace's equation**and the determination of the potential in acharge-free region is reduced to the problem of finding the appropriate solution of

this equation. The lEp=0 at surface of values of V and its derivatives at the ...

Page 294

This expression may be shown by substitution to be a solution of

n is a solution, i.e., VH2 = 0 Q for a circular coil can be found by obtaining a

solution ...

This expression may be shown by substitution to be a solution of

**Laplace's****equation**, and since the sum of any number of terms of this form is also a solution,n is a solution, i.e., VH2 = 0 Q for a circular coil can be found by obtaining a

solution ...

Page 295

This vector equation represents three scalar equations in the components and is

the analogue of Poisson's equation in electrostatics. At points where i, = 0 it

becomes

solution ...

This vector equation represents three scalar equations in the components and is

the analogue of Poisson's equation in electrostatics. At points where i, = 0 it

becomes

**Laplace's equation**, and A at a point where there is no current is asolution ...

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