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The Electric Field

             The objective of this experiment is to evaluate and compare the lines of force associated with dipoles formed from point and line charges.
             Charge, like mass is a fundamental property of all matter. There are two types of charges, positive and negative. Like charges exert repulsive forces on one another and opposite charges attract. In order to examine this, it is best to use the concept of the electric field. The force of a charged particle in an electric field is the product of the field strength and the amount of charge the particle contains. .
             Michael Faraday introduced fictitious lines of force to better understand the motion of a charged body in an electric field without actually performing calculations. In order to better understand the motion of a charged body in an electric field experimentally, we use a concept known as voltage or potential. Lines of constant voltage are everywhere perpendicular to Faraday's lines of force. As a result, voltage can be measured and used to determine lines of equal potential, which in turn can be used to construct the lines of force. Voltage is the ability of a body in an electric field to do work by virtue of its position in that field and the strength of its charge. If there is a positive charge in the vicinity of another positive charge, it will experience a repulsive force arising from the voltage between its current position and some reference location. It will then accelerate and convert potential energy to kinetic energy.
             U electric = q x V.
             Electric potential energy = charge x voltage.
             V = I x R.
             Voltage = current x resistance.
             Resistance per unit length = R L = V IL.
             Given plastic board with two terminals, rubber magnets, power supply, voltmeter, ammeter, conductive paper, carbon paper, ordinary white paper, wires, probes, point and horizontal poles, ruler.
             Practice making a circuit by attaching the wires and probes to the proper positions on the power supply, voltmeter, and ammeter.

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