- #1
pghaffari
- 35
- 0
Homework Statement
http://imgur.com/VsDrQ,dJ2iv
Homework Equations
Current in loop 1: i_1 going counter-clockwise
Current in loop 2: i(t) going counter-clockwise
Before opening switch: we know that 2 loops exist, left and right. also the current is constant because it says the circuit was at rest for a long time.
After we open the switch, we know that the left loop is shorted out, and we somehow use (a) and (b) and plug it into our equations and solve?
We also know that i(0-) = i(0+)
The Attempt at a Solution
Before opening the switch:
Loop 1 (left) : -v_initial - (i_1 - i(t)) R = 0 ---> v_initial = -R i_1 + R i(t)
Loop 2 (right): i(t) = - R i(t) + r i_1 - 1/c integral i(t)dt
After switch is open:
i(0+) = 1
v(2microseconds) = 1/e
...
I don't understand how to proceed from here? What exactly do I have to do.. I'm stuck. Please let me know as soon as possible. Thanks.