| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 5A20.00 | Coulomb's Law | | |
| 5A20.10 | rods and pivot | PIRA 200 | With one charged rod on a pivot, use another of the same or opposite charge to show attraction or repulsion. |
| 5A20.10 | rods and pivot | 5A20.10 | With one charged rod on a pivot, use another of the same or opposite charge to show attraction or repulsion. |
| 5A20.10 | rods and pivot | E-1 | Show attraction or repulsion with rods on a pivot or hung by a thread. |
| 5A20.20 | pith balls | PIRA 200 | Suspend two small pith balls and show either attraction or repulsion. |
| 5A20.20 | Coulomb's law with pith balls | 5A20.20 | |
| 5A20.20 | Coulomb's law with pith balls | AJP 46(11),1131 | Charge
two pith balls with an electrostatic generator, project on the wall and measure,
discharge one ball, and remeasure the separation. Accuracy is typically 2%. |
| 5A20.20 | pith balls | Ea-5 | Suspend two small pith balls from a common support. |
| 5A20.20 | pith balls | E-7 | Charge pith balls. |
| 5A20.21 | Coulomb's law on the overhead | 29-1.20 | Demonstrate Coulomb's law on the overhead with two ping-pong balls. |
| 5A20.21 | pith balls on overhead | 29-1.4 | Suspend two pith balls coated with Aquadag in a clear framework on the overhead projector. |
| 5A20.22 | hollow aluminum foil balls | TPT 28(9),607 | Hollow aluminum foil balls are charged with a Van de Graaff generator. |
| 5A20.22 | hollow aluminum balls | 29-1.8 | Wrap aluminum foil around a marble or ping-pong ball and then remove the ball to make a replacement for a light pith ball. |
| 5A20.22 | pith balls & variations | E-2 | Metal painted ping pong balls, gas filled balloons, pith balls are used as charge indicators. |
| 5A20.23 | repelling balls | 29-1.21 | A small charged pith ball is repelled from a large charged sphere. |
| 5A20.23 | electric potential | E-56 | Bring a charged pith ball close to a like charged conductor and note the repulsive force. |
| 5A20.25 | ping pong ball electroscope | PIRA 1000 | |
| 5A20.25 | ping pong balls | AJP 35(7),iii | Paint a ping pong ball with silver printer circuit paint. |
| 5A20.25 | ping pong pith balls | Ea-6 | Two silver coated ping pong balls are suspended from separate supports. |
| 5A20.25 | ping-pong ball electroscope | 29-1.2 | Repulsion of two charged ping-pong balls hung from nylon cord. |
| 5A20.25 | ping-pong ball electroscope | 29-1.3 | Hang an electroscope made from aluminized ping-pong balls from aluminum welding rod. Picture. |
| 5A20.25 | electrostatic ping-pong deflection | Disc 16-23 | Attraction and repulsion between charged conductive ping pong balls. |
| 5A20.26 | ping pong ball electroscope | AJP 30(12),926 | Details of an electroscope made with ping pong balls on the ends of hanging rods. |
| 5A20.27 | image charge | AJP 31(9),xi | A large
metalized styrofoam ball is mounted on a rod with a counterwieght and air
bearing at the midpoint. Bring a second ball and then a highly charged metal
plate near. |
| 5A20.27 | counterweighted balls | TPT 1(5),225 | Polystyrene spheres (3" dia.) are mounted on counterweighted Lucite rods. |
| 5A20.27 | counterweighted balls | 29-1.11 | Pith balls are replaced by balls pivoting on counterweighted rods. |
| 5A20.28 | beer can pith balls | PIRA 1000 | |
| 5A20.28 | beer can pith balls | 5A20.28 | Aluminum beer cans are used instead of pith balls to show repulsion of like charges. |
| 5A20.30 | mylar balloon electroscope | PIRA 1000 | |
| 5A20.30 | balloon electroscope | AJP 31(2),135 | Balloon electroscopes, helium filled or normal, can be painted with aluminum and charged with a Van de Graaff. |
| 5A20.30 | balloons on Van de Graaff | TPT 28(2),103 | Tape mylar balloons on conducting strings to a Van de Graaff generator. |
| 5A20.30 | Van de Graaff repulsion | 29-1.9 | Hang an aluminized balloon is hung from a rod attached to the Van de Graaff electrode to demonstrate repulsion of like charges. |
| 5A20.32 | electrostatic spheres on air table | PIRA 1000 | |
| 5A20.35 | Coulomb's law balance | AJP 38(11),1349 | The PSSC soda straw balance is adapted to make a simple Coulomb's law balance. |
| 5A20.40 | aluminum sheet electroscope | 29-1.5 | Two squares of aluminum foil are suspended from wires across a glass rod. |
| 5A20.41 | large leaf electroscope | 29-1.6 | A 15" length of 1 1/2" mylar tape is suspended along a brass strip. |
| 5A20.50 | measuring Coulomb's law | 29-1.19 | An
optical lever and damper make this apparatus useful to demonstrate Coulomb's
law. Diagram, Construction details in appendix, p. 1311. |