A parallel plate capacitor is made of two plates of length width and separated by distance d A dielectric slab dielectric

Question

A parallel plate capacitor is made of two plates of length width and separated by distance d A dielectric slab dielectric constant K that fits exactly between the plates is held near the edge of the plates It is pulled into the capacitor by a force au F where U is the energy of the capacitor when dielectric is inside the capacitor up to distance x see figure If the charge on the capacitor is Q then the force on the dielectric when it is near the edge is Q d A B 201 ED C K K 1 2d1 p D Q d 201 p Q w K 2d1 n K 1 1

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