A parallel-plate capacitor has rectangular plates of length L = 10 cm and width W = 4
Question:
A parallel-plate capacitor has rectangular plates of length L = 10 cm and width W = 4 cm (Figure). The region between the plates is filled with a dielectric slab of dielectric constant ? = 4 which can slide along the length of the capacitor. Initially, the slab completely fills the rectangular region, and the capacitor holds a charge of 0.2 ?C. How far should the dielectric slab be pulled so that the stored energy is double its initial value?
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Suppose that Q does not change U i 12 Q 2 4 C 0 Where C 0 is ...View the full answer
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