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The two plates of a parallel-plate capacitor have charges +Q and −Q placed on them, leading...

The two plates of a parallel-plate capacitor have charges +Q and −Q placed on them, leading to a uniform electric field E between the plates. The distance between the plates is then doubled. The new electric field is

a)E/2

b)E

c)2E

d)4E

e)None of the above

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