- #1
paulmdrdo
- 89
- 2
Homework Statement
[/B]
![27ya1rd.png](http://[IMG]http://i64.tinypic.com/27ya1rd.png)
2. Homework Equations
![skunwi.png](http://[IMG]http://i67.tinypic.com/skunwi.png)
3. The Attempt at a Solution
![n55sg2.png](http://[IMG]http://i68.tinypic.com/n55sg2.png)
In got stuck. I'm not sure as to what Time constant should I use to solve for the capacitance value. In the original expression for the current, both terms are exponential function. I do not know whether to use the time constant associated with the first term or the second term.