A Capacitor Consists of a Set of Two Parallel Plates

question 35

Multiple Choice

A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery and charged until its plates carry charges +Q and -Q. If the separation between the plates is doubled, the potential difference between the plates will

• A) double.
• B) quadruple.
• C) be cut in half.
• D) be cut in fourth.
• E) not change.

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The total net gain to society from a market transaction, which is the combination of consumer surplus and producer surplus.

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