Illustrates the moving-coil galvanometer principle: current through a suspended coil in a magnetic field produces torque, deflecting a mirror whose rotation is read optically. A historical example of precision analog …
Demonstrates the operating principle of a d'Arsonval (moving-coil) galvanometer. The open construction allows students to see the coil, magnet, and suspension while the schematic on the dial face illustrates the …
A current-carrying coil suspended in a horseshoe magnet's field rotates to align with the field, demonstrating the torque on a magnetic dipole. Students observe the motor principle: magnetic forces on …
Demonstrates that parallel currents attract and antiparallel currents repel, providing a direct observation of Ampère's force law. The freely suspended coils swing visibly when energized, making the magnetic interaction between …
A transparent CENCO motor/generator model demonstrates three configurations: series motor, shunt-wound motor, and hand-cranked generator. Students observe torque on a current-carrying coil, the effect of reversing polarity in different winding …
