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C combinations

The questions below are due on Wednesday March 04, 2020; 11:59:00 PM.
 
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Find the equivalent capacitance for each case in the figure below.1

Enter the value of C [in F] for circuit (a).

Enter the value of C [in F] for circuit (b).

Enter the value of C [in F] for circuit (c).

1 There is no special significance to the use of an asymmetric symbol for the capacitors here. In general, such symbols would have significance: asymetric capacitors (called 'polar') provide less leakage (i.e. less non-ideal conductance), and are smaller than equivalently capacitive non-polar capacitors, but must operate with the '+' terminal at a higher potential than the '-' terminal. In this case, we are using this style simply because that is the diagram we had on hand.