26. Capacitors & Dielectrics
Parallel Plate Capacitors
4:23 minutes
Problem 24.19b
Textbook Question
Textbook Question(III) Small distances can be measured using a capacitor whose plate separation π is variable. Consider an air-filled parallel-plate capacitor with fixed plate area A = 25 mmΒ² separated by a variable distance π. Assume this capacitor is attached to a capacitance-measuring instrument which can measure capacitance C in the range 1.0 pF to 1000.0 pF with an accuracy of βC = 0.1 pF .
(b) Define βπ to be the accuracy (magnitude) to which π can be determined, and determine a formula for βπ.
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