Would greatly appreciate an explanation to 1, 2, 3 Multi Circle the correct answ

Question

Would greatly appreciate an explanation to 1, 2, 3

Multi Circle the correct answer(s) Phys 260 Exam I1-A Choice-You do not need to show your work -No partial credit. capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor s connected to a battery that maintains a constant potential difference between the plates. If the Separation between the plates is doubled, the magnitude of the electrical energy stored on the capacitor 1. A will (a) not change. (b) quadruple. (c)) double. E o 2 (d) be cut in fourth. (e) be cut in half. 2. When two or more capacitors are connected in series to a battery, (a) each capacitor carries the same amount of charge. (b) the equivalent capacitance of the combination is less than the capacitance of any of the capaci- tors. (c) the total voltage across the combination is the algebraic sum of the voltages across the individual capacitors (d) all of the given answers (e) none of the given answers 3. All points on the perpendicular bisector of the line joining two equal but opposite charges have a potential of zero. a) True (b) False

Explanation / Answer

capacitance = k * area / distance

original capacitance C = k * A / d

energy stored E = 0.5 * CV^2

if the distance between the plates is doubled then new capacitance will be

C' = k * A / 2d

C' = C / 2

new energy E' = 0.5 * C' * V^2

E' = 0.5 * (C / 2) * V^2

E' = E / 2

new value of electrical energy stored will be cut in half

*kindly post 1 question at a time

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