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Question

If is the value of the capacitance of a capacitor filled with a given dielectric and is the capacitance of an identical capacitor in a vacuum, the dielectric constant, symbolized by the Greek letter kappa, , is simply expressed as

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Solution

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Correct option is
A

The capacitance of a parallel plate capacitor filled with the given material of dielectric constant is given by:
              .....................eq1
And the capacitance of the same capacitor without the given material is given by:
               .....................eq2
Dividing eq1 by eq2:
             

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