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- General Radiotelephone Operator (Element 3 (GROL)) »
- FCC Element 3 - General Radiotelephone
84. After two time constants, the capacitor in an RC circuit is discharged to what percentage of the starting voltage?
After two time constants, a discharging capacitor in an RC circuit retains approximately 13.5% of its initial voltage, as described by the exponential decay equation V (t) = V0e−t/RC.
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