Point Source and Guard Ring What Relation Can Be Derived Between the Distance

®

Model No. ES-9060

Accuse, Equipotential, and Field Mapper

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Equipotential and Field Mapping
Experiments

The following are only some suggested experiments in mapping
equipotentials and field gradients using the PASCO Field Mapper. The
truthful value of the equipment lies in its complete flexibility, permitting
the user to blueprint any organization of charged bodies, and then to map the
equipotentials and field gradients.

Notation: Only power supply connections are shown in the following
schematics. Voltmeter connections are not shown considering they vary
depending on whether equipotentials or field gradients are being
mapped.

Experiment 1: Parallel Plate Capacitor

Questions:

a) What is the field exterior the

capacitor plates?

b) How does the ratio of the plate

length (l) versus separation (d)
bear on the fringing effect at the edges
of the plates?

c) What redesign of the plates, or perhaps the extra electrodes, could

aid eliminate the fringing result?

Experiment 2: Point Source and Guard Ring

Questions:

a) What relation can be derived

between the distance from the
heart of the betoken source and the
equipotential value?

b) Would this same relation hold if the

organization were 3 dimensional?

c) What purpose does the big outer ring serve in this experiment?

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Schematic i

electrodes

connecting wires

DC

source

d

l

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Schematic 2

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Source: https://www.manualsdir.com/manuals/340911/pasco-es-9060-charge-equipotential-and-field-mapper.html?page=12

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