Resistor connected in series with a capacitor?

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Homework Help Overview

The discussion revolves around a series RC circuit involving a capacitor with a capacitance of 3µF and a resistor of 1 ohm, connected to a 6V EMF source. Participants are exploring the potential difference across the resistor and the implications of the capacitor's behavior in the circuit.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants are questioning the potential difference across the resistor, particularly whether it could be zero due to the capacitor creating an open circuit. There is also discussion about the timing aspect of the circuit's behavior after the voltage is applied.

Discussion Status

The conversation is ongoing, with participants offering insights into the time-dependent behavior of the circuit. Some suggest that the state of the capacitor (fully charged or not) is crucial to understanding the voltage across the resistor. There is no explicit consensus yet, as various interpretations of the circuit's behavior are being explored.

Contextual Notes

Participants note the importance of time in analyzing the circuit's behavior, with some emphasizing that the circuit's state could change significantly depending on how long it has been connected to the voltage source. The lack of a specified time frame adds to the complexity of the discussion.

gunblaze
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Pls help..

If i have a capacitor of capacitance 3uF connected in series with a resistor, what will the potential difference across the 1ohm resistor when the EMF is 6V?

Is the answer a zero? If yes, why? is it becoz the capacitor itself have make the circuit a open circuit such that no current will be able to reach the resistor? If no, why?

Thanks
 
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My question would be at what time? This is a series RC circuit, and the voltages depend on how much time passes after you apply the 6 volts.

V(c) = Vcc (1-e^-(t/rc))

V(r) = Vcc * e^-(t/rc)
 
if it was stated that the capacitance were charged fully? No time were stated.
 
Well.. there must be some kind of qualification as to time. If the circuit has been connected a very long time, you could solve it by making t very very large. The equations do model the behavior of the circuit quite nicely.
 
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