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Fieled mapping (Phys 182)

Fieled mapping (Phys 182) - Goal We will investigate...

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Goal We will investigate electric field and the electric potential for several arrangements of electrodes. Theory Electric field means the electric force per unit charge. The electric field from a positive charge points away from the charge and the electric field from a negative charge points toward the charge. Also, electric field should be expressed by a vector associated with each point in space. The electric field of a point charge can be obtained from Coulomb's law. E= FQ = KQsourcer2 Also, the electric field of a point charge can be obtained from Gauss’s law. Electric potential is the amount of potential energy per unit of charge. When a positive test charge q 0 is moved between points A and B in an electric field E, the change in the potential energy of the charge-field system is The electric potential V = U / q 0 is a scalar quantity and has the units of J/C, where 1 J/C = 1 V. The potential difference between points A and B in an electric field E is defined as
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