26. Capacitors & Dielectrics
Capacitors & Capacitance
4:23 minutes
Problem 24.72
Textbook Question
Textbook Question(a) A general rule for estimating the capacitance C of an isolated conducting sphere with radius r is C (in pF) ≈ r (in cm). That is, the numerical value of C in pF is about the same as the numerical value of the sphere’s radius in cm. Justify this rule.
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