Final current through resistors

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SUMMARY

The discussion centers on calculating the current through resistors in an RC circuit with a capacitor value of 3.45 F, resistances of 29.0 Ω and 28.0 Ω, and a voltage of 3.00 Volts. The initial current immediately after the switch is closed is calculated to be approximately 1.07×10-1 A. However, confusion arises regarding the current through resistors R1 and R2 after the circuit has stabilized, as the user incorrectly assumes the current is zero. The correct understanding is that the voltage across R1 remains active due to the battery connection, allowing for a non-zero current.

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  • Understanding of RC circuits and their behavior over time
  • Knowledge of Ohm's Law (I = V/R)
  • Familiarity with capacitor charging and discharging principles
  • Basic circuit analysis techniques
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  • Study the behavior of RC circuits over time, focusing on transient and steady-state analysis
  • Learn about the impact of battery connections on resistor current in steady-state conditions
  • Explore advanced circuit analysis techniques, such as Thevenin's and Norton's theorems
  • Investigate the effects of different capacitor values on circuit performance
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Electrical engineering students, hobbyists working with RC circuits, and anyone looking to deepen their understanding of circuit dynamics and current flow in resistive components.

sabak22
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Homework Statement


The diagram below depicts an RC-circuit where C = 3.45 F, = 29.0 , = 28.0 , and = 3.00 Volts

What is the current through immediately after the switch S is closed?
1.03×10-1 A

What is the current through immediately after the switch S is closed?
1.07×10-1 A

What is the current through the capacitor immediately after the switch S is closed?
1.07×10-1 A

What is the current through R1after the switch S has been closed for a very long time? Assume that the battery does not go dead

What is the current through R2 after the switch S has been closed for a very long time? Assume that the battery does not go dead

Homework Equations


I= V/R

The Attempt at a Solution



So I got the first three questions by applying the formula above for the current. As for the current after a long time, i was so sure that the current through a resistor is 0 after a longtime, but when i enter 0A it says Incorrect. Any help?
 

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What's going to change the voltage across R1 if it has a battery connected directly across it?
 

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