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A capacitor charge as a time constant of R resistance C capacitance in ufd and it is defined as 63% for one time constant for the constant voltage source. Electronic engineers assume that a capacitor is fully charged by a 5 times constant. however mathematically speaking it will never be fully charged for obvious reasons. Therefore the answer is current will never stop/

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14y ago
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15y ago

There is a transient current flow when the capacitor is first connected to the DC souirce. This transient lasts about five time constants (RC time). Then the capacitor is mostly charged and the transient flow stops and there is no current flow thereafter.

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Q: What would happen to the current flow in a dc circuit when the capacitor is fully charged?
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