Two thin pistons with an area of S = 20 cm2 each, placed in a horizontal dielectric cylinder, form a flat capacitor filled with air at atmospheric pressure p0 = 105 Pa. How many times will the distance between the pistons change if they are uniformly charged with opposite charges of value Q=3•10-6 C? The temperature in the system is constant. The transverse dimensions of the pistons are large compared to the distance between them.
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