Answer to Question #114 in Electromagnetism for assignment lover
a) If the capacitor is disconnected from the voltage source, the charge on it can not be changed under any circumstances. So everything remains the same.
b) C = εoε*(S/d)
If the distance increased, the capacity decreased 3-fold. C = Q/U. If the capacity diminished, the charge reduced 3-fold. The electric current in various media.
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