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- PHY102 Physics II © Dr.Cem Özdoğan
- Parallel Plate Capacitor — Example
- A huge parallel plate capacitor consists of two square metal plates of side 50 cm, separated by an air gap of 1 mm. What is the capacitance?
- Lesson: difficult to get large values
- of capacitance without special
- tricks!
- C = 0A/d
- = (8.85 x 10–12 F/m)(0.25 m2)/(0.001 m)
- = 2.21 x 10–9 F
- (Very Small!!)