D+30+24 | Vacuum tube with screen shows cathode rays bent with a magnet. | 2014-11-12 |
D+15+24 | Levitator: Aluminum dish floats four inches off platform. | 2014-11-21 |
D+15+20 | Jumping rings: High current AC coil causes rings to jump. | 2014-11-21 |
D+30+18 | Force on a current carrying wire in a magnetic field. | 2014-11-06 |
D+30+26 | E/M tube: Circular bending of an electron beam in a magnetic field. | 2014-11-12 |
D+15+0 | Bar magnet induces current in a coil, shown on galvanometer. | 2014-11-21 |
D+30+16 | Ampere's law: Currents in parallel wires attract or repel. | 2014-11-06 |