review+electric%20potential%201

review+electric%20potential%201 - Outline and review Review...

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1 Outline and review Review on Coulomb's Law and electric field. Discussion about electric potential (energy). Coulomb’s Law in electrostatics governs the forces between two point charges:
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2 Review: Coulomb’s Law While magnitude of the force is calculated using the formula in page 1. The direction of the electric force is given by: Force is a vector. The direction of the Coulomb force follows 1. The line defined by the two point charges. 2. Like charges repel, unlike charges attract.
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3 Review: From Coulomb’s Law to electric field The concept of a field, here the electric field, is introduced to provide the medium for electric force of one charge to act over a distance and “instantaneously” on another charge. The definition: More often used: F = q · E Which carries a different meaning: charge in an electric field experiences a force. test q F E =
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4 Review: connection of Coulomb’s Law and electric field at point charge level When e-field of a point charge is concerned: The direction of the E field is defined by the direction of a positive test charge.
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review+electric%20potential%201 - Outline and review Review...

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