Electrical Force. Unit 1.3. Objectives. Explain the similarities and differences between Newton’s law of universal gravitation and Coulomb’s law. Explain how the force between two like charges and the force between two unlike charges are different. Describe how to create an electric field.
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Where G = 6.67 x 10-11
Where K = 9.0 x 109
SI unit = Coulomb (C)
Elementary Charge - Charge on one electron or proton = 1.6 x 10-19 C
Flow caused by “potential” difference
Current – Flow
A pump is a source of fluid pressure difference
A battery is a source of electrical potential difference