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distance between prallel plate capacitor is increased what happens to the charges on plates, potential difference across plates, energy stored in the capacitor |
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Answer» The FORMULA for the capacitance of a parallel plate capacitor is C=ϵAx, where ϵ is the permittivity of the medium between the plates, A is the OVERLAPPING area of the two plates and x is the uniform separation between the plates. Capacitance, intuitively, is the ability of a pair of conductors separated by a dielectric to store ELECTROSTATIC energy - or in other words, how much charge the conductors can store at a given VOLTAGE level. It is analogous to the CAPACITY of a bucket being how much water it can hold. Q=CV Assuming that the capacitor is connected across a constant voltage source keeping V constant, increasing the distance between the parallel plates will decrease C at a constant V, an increase in C will decrease the charge Q that the conductors can hold. |
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