| Electrostatics is the branch of
physics that deals with the forces exerted by a static (i.e. unchanging)
electric field upon charged objects.
In
electrostatics, charge need not be 'static' in the sense of unchanging.
Instead 'static' implies that the dynamic coupling between electric and
magnetic fields can be ignored. In electrostatics we study e-fields, voltage,
and charge, but ignore any magnetic fields generated by the motion of
these charges or that may be present for other reasons. Because of the
electric field's relationship to and interaction with magnetism, electrostatics
is a subfield of electromagnetism.
In physics, Coulomb's law is an inverse-square
law indicating the magnitude and direction of electrostatic force that
one stationary, electrically charged object of small dimensions (ideally,
a point source) exerts on another. It is named after Charles-Augustin
de Coulomb who used a torsion balance to establish it.
Coulomb's Law may be stated as follows:
"The
magnitude of the electrostatic force between two point charges is directly
proportional to the magnitudes of each charge and inversely proportional
to the square of the distance between the charges."
This is analogous to Newton's third law of motion in mechanics. The formula
to Coulomb's Law is of the same form as Newton's Gravitational Law. The
electrical force of one body exerted on the second body is equal to the
force exerted by the second body on the first.
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Static electricity is a class
of phenomena involving objects with a net charge; typically referring
to charged objects with voltages of sufficient magnitude to produce
visible attraction, repulsion,Arcs and sparks.
In paranormal research, electrostatics are
important because of its relation to electromagnetism. The use of
a electrostatic meter is important when analizing areas where objects
have been reported to move about. Additionally the moved object
itself can be measured to see if any electrostatic energy, such
as the triboelectric effect, was involved.
This
miniaturised instrument detects presence and polarity of static
electricity. Provides direct readings on two scales of 5,000 and
30,000 volts at distances of 100mm(4”) or 300mm (1(.2”) respectively.
The
instructions for use are printed on the meter itself and are composed
of three simple steps.
1.
Hold the locator away from all static sources and press and hold
the button located on the right side of the meter.
2.
With the button depressed, point the locator towards the suspected
area and approach it.
3.
At selected distance, read the meter immediately and then release
the button.
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