Predict/Explain Two capacitors are connected in parallel.

Chapter 21, Problem 67

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Predict/Explain Two capacitors are connected in parallel. (a) If a third capacitor is now connected in parallel with the original two, does the equivalent capacitance increase, decrease, or remain the same? (b)Choose the bestexplanationfrom among the following: I. Adding a capacitor tends to increase the capacitance, but putting it in parallel tends to decrease the capacitance; therefore, the net result is no change. II. Adding a capacitor in parallel will increase the total amount of charge stored, and hence increase the equivalent capacitance. III. Adding a capacitor in parallel decreases the equivalent capacitance since each capacitor now has less voltage across it, and hence stores less charge.