Resistance Measurements Demonstrator with 4mm Terminals Electricity & Magnetism_Electricity & Circuits this metal helix lets stairwell-scale

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

Eighteen-inch 25-watt T8 germicidal UV fluorescent replacement tube

and inner components

Rectangular casted metal case and polythene insulated lid with finger flap to facilitate removal

supplied in a wooden case for full-classroom harmonic investigations

Resistance Measurements Demonstrator with 4mm Terminals Electricity & Magnetism_Electricity & Circuits this metal helix lets stairwell-scaleThree 1W resistors of different values on a single base with six 4mm terminals, sized for hands on Ohm's law measurement and series parallel comparison without rewiring between values.