A stack of paper with net dielectric constant K is placed between the plates of a capacitor holding a fixed charge. What happens to the electric field F and the energy U stored between the plates (E0 and U0 are the values before sheet is inserted)?
A. E → E0/K, U → U0/K
B. E → E0/K, U → U0K
C. E → E0K, U → U0K
D. E → E0K, U → U0/K
E. E → E0, U → U0/K2
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