Electricity/Magnetism Learning Activities

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

For examination of the deflection of the electron beam in a magnetic field. Particularly suitable for determining e/m in a homogeneous magnetic field generated by Helmholtz coils. Spherical glass flask containing i.a. an electron gun with indirectly heated cathode and anode with holes. The glass flask is filled with neon of low pressure. The gas atoms are ionized by the electrons and are thus excited so that light can be emitted. Therefore, a visible luminous beam is formed along the path of the electrons.

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

The exercise oscilloscope is placed at the Helmholtz coils so that its main axis coincides with the axis of the coils. A sawtooth-shaped voltage is applied to the deflection plates of the oscilloscope so that a smooth horizontal line appears on the screen. Let direct current pass through the coils at a preset anode voltage and adjust the intensity of the current so that the line is focused at one point. The specific charge e/m of the electron can be calculated from the measured values ​​of the anode voltage and the current through the coil.

Supplier: LUNDGRENS MASKINF═RN═DENHETER

765-0325 Rubber band, Norstedt; Fits Norstedt's belt generators.

Supplier: LUNDGRENS MASKINF═RN═DENHETER

Educational Materials, Electricity/Magnetism, Application: Physics, Rubber cloth, 150 × 150 mm

Supplier: CORNELSEN EXPERIMENTA

Skarvklämma med skruv. För tråd och plåt med max 1 mm tjocklek.

Supplier: CORNELSEN EXPERIMENTA

Apparatus for demonstrating the movement of a charged body. Consists of plexiglass tubes with two metal electrodes, ball with metallic surface and 4 mm connection sleeves. When connected to a high voltage source, the ball moves back and forth between the electrodes.

Supplier: CORNELSEN EXPERIMENTA

For experiments with thermoelectric effects. Consists of brazed copper and constant wire. Equipped with connections for 4 mm banana connectors. Mounted on plate with rod, 10 mm.

Supplier: CORNELSEN EXPERIMENTA

Plastic rod with metal tube equipped with an axial and a radial 4 mm connection.

Supplier: PHYWE

Effective and pedagogical experimental set. A number of phenomena in electrostatics can be illustrated. Very suitable for use with belt generator or influence machine. The kit is included.

Supplier: GR NNA PLASTEMBALLAGE AB

Straight, stainless steel wire, mounted with a rubber stopper in soda glass tubes. Used for collecting gases during electrolysis. Suitable holder 765-0440. Electrode.

Supplier: CORNELSEN EXPERIMENTA

When charging, the screen unfolds. Equipped with 4 mm rod suitable for influence machine, belt generator and Faraday's cage.

Supplier: PHYWE

Measurement insert for resistance measurement. Used together with demonstration instruments 765-1247. Clear, fine-grained scale with number markings. Measuring range window where the information automatically follows the measuring range switch. On the back there are measuring range switches, zero adjustment and contact sleeves for printers.

Supplier: 3B Scientific

Highly evacuated electron tube with focusing electron gun and fluorescent screen (90×60 mm) inclined relative to the beam axis, so that the path of the beam can be seen and the effects of electric and magnetic fields can be studied. The electron beam can be deflected electrically in the electric field of the built-in plate capacitor, and magnetically by using an optional Helmholtz coil pair D. By adjusting the electric field so that it cancels the magnetic deflection, it is possible to determine the specific charge e/m and the velocity of the electrons.

Supplier: PHYWE

Only 50 components.

Supplier: GR NNA PLASTEMBALLAGE AB

Educational Materials, Electricity/Magnetism, Application: Physics, Ylleduk, 150 × 150 mm

Supplier: PHYWE

For measuring low currents AC/DC and DC voltages AC/DC eg Hall voltages and thermal voltages. High sensitivity and very good electrical stability. Well shielded from disturbing voltages. Overload protected up to 220 V AC/DC. The front is equipped with two scales 0 to 3 and 0 to 10 both with fine division, measuring area window and automatic function indication. The back is equipped with a function switch, measuring range switch, pushbutton for zero setting and steering wheel for electrical zero adjustment. There is also a printer connection.