## Principles of Electricity and Electromagnetism |

### From inside the book

Results 1-3 of 20

Page 30

This is known as

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

this equation. The Ep-o of surface of values of V and its derivatives at the a ...

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 Ep-o of surface of values of V and its derivatives at the a ...

Page 294

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

Q is a solution, i.e., - V20 = 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,Q is a solution, i.e., - V20 = 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 ...

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Other editions - View all

### Common terms and phrases

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