PASCO ES-9060 Charge, Equipotential and Field Mapper - Manual (Page 13)

Charge, Equipotential, and Field Mapper Model No. ES-9060
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Experiment 3: Dipoles of Opposite Charge
Questions:
a) What is the relation between the
direction of a maximum value field
gradient and equipotential line at
the same point? (A geometrical
relation is desired.)
b) What effect does the finite size of
the black paper have on the field?
Experiment 4: Dipoles of Like Charge
Questions:
a) How does the field of this
configuration compare with
dipoles of opposite charge? (See
Experiment 3, “Dipoles of
Opposite Charge.”)
b) What distortion of the field is
produced by the large electrode
around the perimeter of the paper?
Experiment 5: Floating Electrode
Before drawing the circular electrode,
map the equipotentials of the two
straight electrodes. Draw the circular
electrode and again map the
equipotentials.
Questions:
a) How does the circular electrode
distort the field?
b) What is the potential of the circular electrode? Of the area inside
the electrode?
c) What effect would moving the circular electrode have?
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Schematic 3
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Schematic 4
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Schematic 5