(Initial current in inductor is zero unless stated otherwise.)
1.The switch S
1
in the circuit in Fig. 10.13-1 is closed at t 0
and the switch S
2
is closed at t 0.12 s. Both switches are
ideal. (i) Find the current in the inductance as a function of
time and plot it. (ii) Find the voltage across the inductance and
plot it. (iii) Find the voltage across the first resistor and plot it.
(iv) What is the time required to attain 90% of the final steady
state value of current?
2. Initial current at t –∞in the inductor in the circuit in
Fig. 10.13-2 was zero. Find i
L
(t) and v
L
(t) for t≥0
+
and
plot them.
3.S in Fig. ...
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