Question
Alll i need is part four or number 27 i got 938.7765786 uC but it is wrong.
A 39 micro F capacitor is charged to 77 V and is then connected across a 473 Ohm resistor. What is the initial charge on the capacitor? Answer in units of micro C Your answer must be within plusminus 1.0% What is the initial current just after the capacitor is connected to the resistor? Answer in units of A Your answer must be within plusminus 1.0% What Is the time constant of this circuit? Answer in units of ms Your answer must be within plusminus 1.0% How much charge is on the capacitor after 6.915 ms? Answer in units of fiC Your answer must be within plusminus 1.0%
Explanation / Answer
q=q0 * (1- e^-t/RC)
q= CV (1-e^-t/RC)
q=3003 * 10^-6(0.312612913)
q=938.776*10^-6 c