Final answer:
A long time after the switch in an RC circuit has been closed, the current through the fully charged capacitor is zero because it behaves like an open circuit. The voltage across the capacitor is equal to the voltage of the power source.
Step-by-step explanation:
The question is asking about the behavior of an RC (resistor-capacitor) circuit a very long time after the switch has been closed. In such a circuit, after the capacitor is fully charged, no current flows through it, since a capacitor in steady-state acts as an open circuit.
This means that the current through the capacitor is 0 A (amperes). For the resistors in the circuit, if they are connected in series with the capacitor, they would also have zero current through them a long time after the switch is closed.
However, if there are any resistors in parallel with the capacitor or in separate branches not affected by the capacitor's charge, they might have current depending on the circuit configuration.
The voltage across the fully charged capacitor will be equal to the voltage that was originally applied to it from the power source.
Your complete question is: С (11%) Problem 10: A capacitor of capacitance C = 9.5 uF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor of resistance R= 11.5 k 2, and a battery which provides a potential difference of V8 = 85 V. Arin S 17% Part (a) Calculate the time constant for the circuit in seconds. T-0.10925 10.1093 ✓ Correct! 17% Part (b) After a very long time after the switch has been closed, what is the voltage drop Vc across the capacitor in terms of VB? Ve=VB ✓ Correct! 17% Part (c) Calculate the charge Q on the capacitor a very long time after the switch has been closed in C. Q=0.0008075 Q=8.075E-4 ✓ Correct! 17% Part (d) Calculate the current I a very long time after the switch has been closed in A. 17% Part (e) Calculate the time t after which the current through the resistor is onc-third of its maximum value in s. 17% Part (f) Calculate the charge Q on the capacitor when the current in the resistor equals one third its maximum value in C.