Physics Practice Problems Parallel Plate Capacitors Practice Problems Solution: Consider a parallel-plate capacitor constructed fr...

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Solution: Consider a parallel-plate capacitor constructed from two circular metal plates of radius R. The plates are separated by a distance of 1.5 mm. (a) What radius must the plates have if the capacitance of this capacitor is to be 1.0 μF? (b) When the capacitor is connected to a 12.0-V battery, what is the magnitude of the charge on each of the plates? (c) Find the energy stored in the capacitor.

Problem

Consider a parallel-plate capacitor constructed from two circular metal plates of radius R. The plates are separated by a distance of 1.5 mm.

(a) What radius must the plates have if the capacitance of this capacitor is to be 1.0 μF?

(b) When the capacitor is connected to a 12.0-V battery, what is the magnitude of the charge on each of the plates?

(c) Find the energy stored in the capacitor.