JEE (Based on NTA Guidelines-IIT Engg.) Mains Physics Electrostatics-Electric Potential Study Material (Page 1 of 3)

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Electric Potential and Potential Difference

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  • An electric field, when an object is moved against the electric field it benefits some amount of energy which is defined as the electric potential energy.
Electric Potential Energy

Electric potential energy is

Where,

  • Potential difference between two points is define as the amount of work done by an external agent…

… (165 more equations, 15 figures) …

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Positive Rays

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Image Shows the Positive Rays

Instruction: positive rays are sometimes known as the canal rays. These fluorescence rays discovered in 1896 by Goldstein. If the cathode of a discharged tube has holes in it and the pressure of the gas is around of mercury then faint luminous glow come out from each hole on the backside of the cathode. The figure shows that something is coming out of holes. These are called canal rays or positive rays.

  • Origin of positive rays:
    • When potential difference is applied across the electrod…

… (236 more words, 16 figures) …

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