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- A standard capacitor consists of two parallel
- plates of conducting metal. The electric field
- between the two plates is given by
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- The potential of the two plates is given by
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- Substituting Eq. 4 into Eq. 1, and solving for
- the capacitance,
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- Because capacitance has been classically
- explained in terms of parallel plates, the circuit symbol of a
- capacitor is .
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