Equivalent capacitance for capacitors:
The capacitance of a parallel plate capacitor:
For a vacuum, k = 1. For other materials, it is greater than 1.
Before inserting a dielectric, the capacitance of the capacitor is
A vacuum-insulated parallel-plate capacitor with plate separation d has capacitance C0.
What is the capacitance if an insulator with dielectric constant κ and thickness d/2 is slipped between the electrodes? Assume plate separation is unchanged.
Express your answer in terms of the variables d, C0, and κ.
C = ?
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