Problem

A parallel plate air capacitor has a capacitance of 4.7 μF. Find the new capacitance if:a....

A parallel plate air capacitor has a capacitance of 4.7 μF. Find the new capacitance if:

a. The distance between the plates is doubled (everything else remains the same).


b. The area of the plates is doubled (everything else remains the same as for the 4.7 μF level).


c. A dielectric with a relative permittivity of 20 is inserted between the plates (everything else remains the same as for the 4.7 μF level).


d. A dielectric is inserted with a relative permittivity of 4, and the area is reduced to 1/3 and the distance to 1/4 of their original dimensions.

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