ClipArt ETC

This science ClipArt gallery offers 14 illustrations of forces and fields produced by electric charges on each other and on the environment around them.

"A vertical conductor carrying an electric current, and surrounded by a magnetic line of force, which is in turn surrounded by electric whirls; the magnetic line of force is an electric vortex-ring." — Avery, 1895

Vertical conductor

"A vertical conductor carrying an electric current, and surrounded by a magnetic line of force, which…

"Thus, if we suppose the conducting wire be placed in a vertical situation, as shown, and p, n, the current of positive electricity to be descending through it, from p to n, and if throught the point c in the wire in the plane NN be taken, perpendicular to p, n, that is in the present case a horiczontal plane, then if any number of circles be described in that plane, having c for thier common centre, the action of the current on the wire on upon the north pole of the magnet, will be to move it in a direction corresponding to the motion of the hands of a watch, having the dial towards the positive pole of the battery." -Comstock 1850

Circular Motion of the [Electric] Fluid

"Thus, if we suppose the conducting wire be placed in a vertical situation, as shown, and p, n, the…

This illustration shows the field between two equally and oppositely charged spheres, mapped out by lines of force.

Electricity

This illustration shows the field between two equally and oppositely charged spheres, mapped out by…

This illustration represents the field between two equal positive charges; in this case the lines of force do not pass from one to the other, but travel off to an infinate distance.

Electricity

This illustration represents the field between two equal positive charges; in this case the lines of…

This illustration shows the lines of force when a positive charge equal to 4 at A, and a negative charge of 1 at B, are used. A being numerically stronger than B, lines starting from A will not fall on B, but pass off to infinate distance.

Electricity

This illustration shows the lines of force when a positive charge equal to 4 at A, and a negative charge…

This illustration shows the field of force due to a charge 1 at A, and a like charge 4 at B.

Electricity

This illustration shows the field of force due to a charge 1 at A, and a like charge 4 at B.

This illustration shows the field of force between two parallel planes. At the edges its lines of foce curve out. Some pass from the back of one plane to the back of the other.

Electricity

This illustration shows the field of force between two parallel planes. At the edges its lines of foce…

A is a positively charged conductor and B represents the equal and oppsite charge. When the conductor C is introduced into the field, some of the lines of force are divided, since they cannot exist in a conductor.

Electricity

A is a positively charged conductor and B represents the equal and oppsite charge. When the conductor…

"Equipotential Lines about two similarly electrified spheres, A and B, the quantities of electricity being as 2:1. The lines of force are also shown radiating from the spheres." -Whitney, 1911

Equipotential

"Equipotential Lines about two similarly electrified spheres, A and B, the quantities of electricity…

"When a charge is moved from any point to another point in the same equipotential surface, no work is done upon it. When a charge is moved from one such surface to another, the work done is independent of the path of transfer. If such a surface was to be rendered impenetrable, a particle could lie upon it without tendancy to move along it in any direction. If any two points in such a surface were to be joined by a conductor, no flow of electrification would take place. The closed lines are equipotential lines drawn, upon equipotential surfaces, about two similartly electrified spheres, the quantity of electrifaction at A being twice that at B." -Avery 1895

Equipotential Lines

"When a charge is moved from any point to another point in the same equipotential surface, no work is…

"Explamation of Faraday's ice pail experiment." -Hawkins, 1917

Faraday's Ice Pail Experiment Explanation

"Explamation of Faraday's ice pail experiment." -Hawkins, 1917

"Lines of force of a charged sphere and a conductor under induction. The negative electrification on the end a of the cylinder indicates that an equal number of lines set out from that end." -Hawkins, 1917

Lines of Force under Induction

"Lines of force of a charged sphere and a conductor under induction. The negative electrification on…

"Coil some No. 12 copper wire throuh holes in a board, as shown, and pass a strong current through it. Sprinkle iron filling as before and note the effect. Such a coil of conducting wire, wound so as to afford a number of equal and parallel circular electric circuits arranged upon a common axis, is called a solenoid." -Avery 1895

Solenoid

"Coil some No. 12 copper wire throuh holes in a board, as shown, and pass a strong current through it.…

"Place a strip of shet iron in the solenoid, as shown...Hotice that most of the lines of force are gathered into the iron and issue from its ends. Notice that the lines curve outward and tend to return, forming closed loops or complete magnetic circuits. Change the iron from the inside of the solenoid to the outside, and repeat...Notice that the iron again gathers in the lines of force as if it offered an easier path for them." -Avery 1895

Solenoid with Iron Bar

"Place a strip of shet iron in the solenoid, as shown...Hotice that most of the lines of force are gathered…