Problem 9.8 - Complete Response of a Circuit with Switched Resistance
*
* The circuit for this problem is from textbook Chap. 9, Exercise 41.
* NOTE: This circuit does not require the use of a voltage- or
* current-controlled switch, as in Problem 9.7. The resistance is
* switched at t=0, so that only the initial conditions and the
* configuration of the circuit for t > 0 are needed for the solution.
*
* Determine the initial conditions by inspection and solve for the
* complete response of the circuit.
* Use either a DC source or a PWL source and the UIC statement.
*
* ===> Use PROBE to display the capacitance voltage response. Is the
* circuit response underdamped, critically damped, or overdamped?
* Obtain a second PROBE graph showing both I(C1) and I(L1). Can you
* predict (using the initial slope of the inductance current) what the
* t=0+ voltage across the inductance will be? Use PROBE to check your
* answer.
*
I1 0 1 ?????????? ; Enter a source type and parameters.
R1 1 2 200
C1 1 0 1.38889E-3 IC=??? ; Enter initial conditions for the
L1 2 0 5 IC=??? ; capacitance and inductance.
.TRAN ??? 2 0 ??? UIC ; Complete the .TRAN command.
.PROBE
.END