Coulomb potential and Coulomb field of metal spheres

Principle

Conducting spheres with different diameters are charged electrically. The static potentials and the accompanying electric field intensities are determined by means of an electric field meter with a potential measuring probe, as a function of position and voltage.

Tasks

1. For a conducting sphere of diameter 2R = 12 cm, electrostatic potential is determined as a function of voltage at a constant distance from the surface of the sphere.
2. For the conducting spheres of diameters 2R = 12 cm and 2R = 4 cm, electrostatic potential at constant voltage is determined as a function of the distance from the surface of the sphere.
3. For both conducting spheres, electricfield strength is determined as a function of charging voltage at three different distances from the surface of the sphere.
4. For the conducting sphere of diameter 2R = 12 cm, electric field strength is determined as a function of the distance from the surface of the sphere at constant charging voltage.

What you can learn about

• Electric field
• Field intensity
• Electric flow
• Electric charge
• Gaussian rule
• Surface charge density
• Induction
• Induction constant
• Capacitance
• Gradient
• Image charge
• Electrostatic potential
• Potential difference

Literature for this article als follows

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