Chapter 53 of 2364 min read
Capacitors: series, parallel, energy stored
Why this is asked: In series, capacitors share the same charge, not voltage; in parallel they share the same voltage, not charge — the opposite pairing from resistor networks. Adding a dielectric to an isolated, constant-charge capacitor actually lowers its stored energy as C rises.
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- •In the following circuit, the equivalent capacitance between terminal A and terminal B is:
- •If the plates of a parallel plate capacitor connected to a battery are moved closer to each other, then: A. the charge stored in it increases. B. the energy stored in it decreases. C. its capacitance increases. D. the ratio of charge to its potential remains the same. E. the product of charge and voltage increases. Choose the most appropriate answer from the options given below:
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