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1. |
In the figure shown, the capacitor is initially uncharged. Which one of the following expressions describes the current I(t) (in mA) for |
A. | \(I\left( t \right) = \frac{5}{3}\left( {1 - {e^{ - \frac{t}{\tau }}}} \right),\tau = \frac{2}{3}\;msec\) |
B. | \(I\left( t \right) = \frac{5}{2}\left( {{e^{ - \frac{t}{\tau }}}} \right),\tau = \frac{2}{3}\;msec\) |
C. | \(I\left( t \right) = \frac{5}{3}\left( {1 - {e^{ - \frac{t}{\tau }}}} \right),\tau = 3\;msec\) |
D. | \(I\left( t \right) = \frac{5}{2}\left( {1 - {e^{ - \frac{t}{\tau }}}} \right),\;\tau = 3\;msec\) |
Answer» B. \(I\left( t \right) = \frac{5}{2}\left( {{e^{ - \frac{t}{\tau }}}} \right),\tau = \frac{2}{3}\;msec\) | |