A capacitor is made from two parallel plates of area A, which are separated by a...
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A capacitor is made from two parallel plates of area A, which are separated by a distance d. The region between the plates is filled by a dielectric of dielectric constant x. The capacitor is first charged with positive charge Q, and then is disconnected, so it remains isolated throughout the problem. (a) What is the capacitance? (b) What is the magnitude of the electric field between the plates? (c) If the distance between the plates is slowly increased from d to 2d by applying an external force what would be the final potential difference between the plates? (d) How much work would be done by the external force during this process? (e) ( What is the magnitude of the force needed to get the top plate moving when the separation is d? d 2d A capacitor is made from two parallel plates of area A, which are separated by a distance d. The region between the plates is filled by a dielectric of dielectric constant x. The capacitor is first charged with positive charge Q, and then is disconnected, so it remains isolated throughout the problem. (a) What is the capacitance? (b) What is the magnitude of the electric field between the plates? (c) If the distance between the plates is slowly increased from d to 2d by applying an external force what would be the final potential difference between the plates? (d) How much work would be done by the external force during this process? (e) ( What is the magnitude of the force needed to get the top plate moving when the separation is d? d 2d
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a The capacitance C of a parallel plate capacitor filled with a dielectric material of dielectric constant K is given by C K A d where K is the dielec... View the full answer
Related Book For
University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford
Posted Date:
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