Introduction to Electrostatics

Static electricity is a substance that is transferred from one object to another.

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Unlike gravitational potential, electrical potential does not depend on height.

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Both positive and negative charges are free to move from one object to another.

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One can use the symbol of (+) to present extra charge and the symbol of (-) to represent missing charge

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Electrostatics and current flow are not two separate subjects. Knowledge of their relationship helps us to have a basic understanding of the current flow.

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The concepts of electric field and electric potential cannot be applied instead of each other.

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Nothing would happen when a charged object was brought close to a neutral object.

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Rubbing a neutral rod with a neutral piece of cloth can result in them both becoming charged.

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When a wood rod was placed between a charged material and an electroscope, the leaves inside the electroscope will not move apart because the wood rod is a nonconductor.

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The electric force in which two charges apply to each other depends on the charges.

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