D+35+0 | Wobbly bar: Magnets in frame balanced by repulsive forces. | 2020-02-26 |
D+5+30 | Wall chart of electromagnetic spectrum. | 2020-03-16 |
D+0+2 | Various capacitors to show. | 2020-02-10 |
D+0+2 | Various capacitors to show. | 2020-02-12 |
D+30+22 | Torque on coil suspended between two magnets. | 2020-03-02 |
D+30+22 | Torque on coil suspended between two magnets. | 2020-02-28 |
D+80+6 | Storage cell: Gotham cell is charged up and rings a bell. | 2020-02-05 |
D+5+12 | Seibt effect: Wire wound glass tube with 510 transmitter. | 2020-03-13 |
D+5+12 | Seibt effect: Wire wound glass tube with 510 transmitter. | 2020-03-16 |
D+0+34 | Same as D+0+30 using oscilloscope to display waveform. | 2020-02-24 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2020-02-14 |
D+55+18 | Resistor analog: Marbles cascading down pin board. | 2020-02-19 |
D+55+6 | Resistance thermometer: Iron coil in liquid Nitrogen and flame varies current. | 2020-02-19 |
D+5+32 | Plexiglas model of electromagnetic wave. | 2020-03-13 |
D+5+32 | Plexiglas model of electromagnetic wave. | 2020-03-16 |
D+20+2 | LR time constant: Square wave drives series LR on oscilloscope. | 2020-03-11 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2020-03-09 |
D+10+30 | Kelvin water drop electrostatic charge generator. | 2020-02-05 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2020-03-06 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2020-03-09 |
D+30+10 | Iron filings around a high current vertical wire on OHP to show field. | 2020-03-02 |
D+30+10 | Iron filings around a high current vertical wire on OHP to show field. | 2020-02-28 |
D+30+6 | Iron filings and permanent magnets to show field on an OHP. | 2020-02-26 |
D+55+4 | High current melts the fuse wire. | 2020-02-14 |
D+55+4 | High current melts the fuse wire. | 2020-02-19 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2020-02-26 |
D+10+10 | Faraday's ice pail: Charge induced on the outside of a pail. | 2020-01-31 |
D+10+10 | Faraday's ice pail: Charge induced on the outside of a pail. | 2020-02-03 |
D+20+0 | Energy stored in large coil with soft iron core flashes bulb. | 2020-03-11 |
D+0+28 | Energy storage in a commercial capacitor. Loud bang! | 2020-02-12 |
D+15+2 | Elementary generator: Bar moved in magnetic field. | 2020-03-06 |
D+10+28 | Electrostatic doorbell: Ball bangs between charged plates. | 2020-01-22 |
D+10+0 | Electric fields: Lines of force shown on an OHP. | 2020-01-27 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2020-02-26 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2020-02-28 |
D+0+16 | Discharging a capacitor through a lamp. | 2020-02-10 |
D+15+16 | Damped pendulum: Swinging metal disks damped in magnetic field. | 2020-03-06 |
D+10+12 | Charge resides on the outside of a conductor. | 2020-01-31 |
D+10+12 | Charge resides on the outside of a conductor. | 2020-02-03 |
D+10+8 | Braun and Leaf electroscopes. | 2020-01-22 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2020-03-02 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2020-03-04 |
D+10+11 | Alternate charge resides on outside of conductor | 2020-01-31 |
D+10+11 | Alternate charge resides on outside of conductor | 2020-02-03 |
D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2020-03-13 |
D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2020-03-16 |