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3. Consider a parallel-plate capacitor of the dimensions that might be found on

ID: 2090761 • Letter: 3

Question

3. Consider a parallel-plate capacitor of the dimensions that might be found on an integrated circuit (in an older computer's RAM, for example). Imagine a square capacitor with side length 0.10 m and a plate separation of 10 nm. The capacitor is lled with a dielectric similar to glass (so you may use the dielectric constant of glass). (a) Find the capacitance of this capacitor. (b) Find the charge on the capacitor if the potential di erence across it is 5.0 V. (c) How many electrons does this correspond to?

Explanation / Answer

C = Q/V so Q = CV Charge on 10.0-