EGR 203 Electric and Electronic Circuits Assignment 3(c)
- Given the circuit below, with R=22.8 kΩ and
C = 10 nF. Find the time constant τ
and the equation for the voltage across
the capacitor as a function of time if the voltage input is
2 V for t ≤ 0 and 5 V for t > 0. Plot the results
for a time of at least five time constants.
- Do the problem above in Multisim, using a pulse source and
both oscillocope simulation and transient analysis (see
RC_multisim.pdf).
- Do the following (15 points)
- (Rizzoni 5.11) Determine the initial and final
conditions for the circuit below.
- (Rizzoni 5.21) Just before the switch is opened
at t = 0, the current through the inductor is 1.70 mA in the
direction shown.
Did steady-state conditions exist before the switch
was opened?
- Find an expression for the current through the inductor
for t > 0.
VS | L | R1
| R2 | R3
|
---|
12 V | 0.9 mH | 6 kΩ | 6 kΩ | 3 kΩ
|
- Do the following (15 points)
- (Rizzoni 5.12 ) Determine the initial and final
conditions for the circuit below.
- (Rizzoni 5.23) Find the current through the
capacitor just before and just after the switch is closed
at t = 0. >
Assume steady-state conditions exist before the switch
was closed.
- Find an expression for the voltage Vx across
the capacitor for t > 0.
VS | C | R1
| R2
|
---|
12 V | 0.5 μF | 0.68 kΩ | 1.8 kΩ
|
Maintained by John
Loomis, last updated 1 October 2014