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RC circuit current calculation

Thread starter minimario
Start date Apr 1, 2015
Tags

Circuit Current Rc Rc circuit

4 replies · 2K views · last reply Apr 1, 2015

minimario

Thread starter
Apr 1, 2015

#1

Homework Statement

Multiple-choice physics problem with a circuit diagram: 2 ohm resistor on top branch, 1 F capacitor and 1 ohm resistor in parallel branches, a 6 V battery and a 1 ohm resistor on the right, and a switch at bottom left.

Homework Equations

##q = Q(1-e^{\frac{-t}{RC}})##

The Attempt at a Solution

Don't know where to start...

Discussion

gleem

Science Advisor

Education Advisor

Apr 1, 2015

#2

What can you say about the current in the branch containing the capacitor after a long period of time?

minimario

Apr 1, 2015

#3

Goes to 0?

gleem

Science Advisor

Education Advisor

Apr 1, 2015

#4

yes. So you are allowed to cut that part out of the circuit since doing so does not affect the rest of the circuit.

minimario

Apr 1, 2015

#5

Ok, got it.

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