A multiple part question for this pic, anyhelp would be appreciated...the questi

Question

A multiple part question for this pic, anyhelp would be appreciated...the questions all go together, not surehow else to post these. But even a partial answer or a multiplesubmission would be appreciated. Thank you! What property of objects is best measured bytheir capacitance? A multiple part question for this pic, anyhelp would be appreciated...the questions all go together, not surehow else to post these. But even a partial answer or a multiplesubmission would be appreciated. Thank you! What property of objects is best measured bytheir capacitance? Consider an air-filled charged capacitor. Howcan its capacitance be increased? Consider an air-filled charged capacitor. Howcan its capacitance be increased? Consider a charged parallel-plate capacitor.Which combination of changes would quadruple its capacitance? Consider a charged parallel-plate capacitor.Which combination of changes would quadruple its capacitance? A multiple part question for this pic, anyhelp would be appreciated...the questions all go together, not surehow else to post these. But even a partial answer or a multiplesubmission would be appreciated. Thank you! What property of objects is best measured bytheir capacitance? Assume that charge -q is placed on the top plate, and +q is placed on the bottom plate. What is the magnitude ofthe electric field between the plates? Express E in terms of q and other quantities given in the introduction, in addition to epsilon not and any other constants needed. What is the voltage V between the plates of the capacitor? Express V in terms of the quantities given in the introduction and anyrequired physical constants. Now find the capacitance C of the parallel-plate capacitor. Consider an air-filled charged capacitor. Howcan its capacitance be increased? Consider a charged parallel-plate capacitor.Which combination of changes would quadruple its capacitance? Express C in terms of quantities given in the introduction and constants like epsilon not.

Explanation / Answer

From the figure, Let ' A ' be the area of each plate of the capacitor, 'd ' be the seperation between the plates, E be the electricfield strength between the plates of the capacitor and ' q 'be the charge on each plate of the capacitor. Then surface charge density () of the capacitor is = q / A Now electric field strength between the plates of thecapacitor is                E = / o                    = q / (Ao) Electric potential between the plates of the capacitoris V = Ed Formula for the capacitance of the parallel plate capacitoris            C = Ao / d When any dielectric material of dielectric constant (k) isplaced in between the plates of the capacitor then the capacitanceof the parallel plate capacitor is increased by k times.       i.e.   C' = kC                    = q / (Ao) Electric potential between the plates of the capacitoris V = Ed Formula for the capacitance of the parallel plate capacitoris            C = Ao / d When any dielectric material of dielectric constant (k) isplaced in between the plates of the capacitor then the capacitanceof the parallel plate capacitor is increased by k times.       i.e.   C' = kC                     

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