Problem 7.38:
This is an interesting problem. It explains why you see a spark
when a switch is disconnected from an inductive circuit.
(a) vo(t) =
-Ig R2 exp[ - t (R1 +
R2)/L ] (volts) ** Show your work!! **
(e) As R2 gets larger and larger,
| vsw | gets larger and larger while
its duration gets smaller and smaller.
Problem 7.41:io(t) =
3.67 + 6.33 e-250 t (A), t >= 0
** Show your work!! **
Problem 7.57: vo(t) =
-40 + 100 e- 1000 t (V), t > 0
io(t) =
-4 -2.5 e- 1000 t (mA), t > 0
Problem 7.81: vo(t) =
40 e- 100 t (V), 0 <= t < 6 ms
vo(t) =
-18.05 e- 100 (t- 0.006) (V), t > 6 ms