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Lab: Determination of the capacitance of metal spheres and spherical capacitors

Sku: 280354
Phywee
€4,213.21 €5,055.85
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Topics covered:

- Tension / Potential

- Charge / Electric Field

- Electrostatic Induction

- Electrostatic Induction Constant

- Capacitance / Capacitor

- Dielectric


Principles and objectives:
Metal spheres of different radii and a spherical capacitor are charged using a variable voltage. The induced charges are determined using a measuring amplifier. The corresponding capacitances are derived from the voltage and charge values.
The different tasks proposed are:
- Determination of the capacitance of three metal spheres of different diameters.
- Determination of the capacitance of a spherical capacitor.
- Determination of the diameters of each test object and calculation of their capacitance values.

Comments:
Provides a high voltage that is not dangerous. Several conducting spheres included. Clever investment: The included universal measuring amplifier can also be used for other applications.

- Conducting spheres, d20 mm / d40 mm / d120 mm / Cavendish hemispheres / Plastic ball - Capillary tube, diam. 1.7mm, l 250mm / Copper wire, d = 0.5 mm, l = 50 m / Insulating rod - Resistance 10 megohms / Capacitor 10 nF / 250 V, G1 - High voltage DC power supply: 0... ± 10 kV, 2 mA - Universal measuring amplifier - Analog multimeter, 600V AC/DC, 10A AC/DC, 2 MΩ, overload protection - Digital multimeter with thermocouple - Shielded BNC cable, l = 1 m / Adapter, BNC socket/4mm plug - T connector, BNC type / BNC socket adapter / 4 mm plug sockets / Insulated crocodile clips, 5 pairs - Plastic caliper / Base and socket / Double nut / Universal clamp with joint - Stainless steel rods: l = 750 mm, d = 12 mm / l = 500 mm, d = 10 mm - Connection wires: 19 A, 100 mm / 32 A, 500 mm / 32 A, 750 mm

Thématique TP Électricité