eguruchela


Coulomb's Law


q: size of charges(c), ε: relative permittivity (in vaccum ε=1), r: distance between the charges(m)


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Electric Fields



E: electric field strength (N/C)


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The Principle Of Superposition For electric Fields



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In case of 2 electric fields


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Work Of Electric Force



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Electric Potential Difference



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Relation Between E And U



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Capacitance



C: capacitance (F), Q: total electric charge(c), U: electric potential (V)


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Capacitor



A: are of each electrode plate (m2), d: distance between the electrodes (m), ε: relative permittivity (F/m)


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Capacitances In Series



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Capacitances In Parallel



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Electric Field Energy



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Energy Of A Capacitor



V: A.d: volume between two electrode plates


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