Magnetic Inclination Needle for Earth Field Demonstration Capacity_50mL 25-inch base raises a magnetic

25-inch base raises a magnetic needle to a 4

letting students route current down either branch of a circuit by choosing which slot the plug occupies

this resistance box at plus-or-minus 1% on each step replaces dozens of fixed resistors at the bench

illustrating the Lorentz force as current crossing the magnetic field sets a low-friction wheel in motion

producing the stroboscopic effect that visually freezes vibrating or rotating objects when the disc speed matches their frequency

Magnetic Inclination Needle for Earth Field Demonstration Capacity_50mL 25-inch base raises a magneticVertically pivoting magnetic needle that visualizes the dip angle of Earth's field, showing how inclination shifts from horizontal at the equator to vertical at the poles.