For the circuit below: i. the switch is open for a long time, it closes at t = Os a) What is the charging time constant for this circuit? b) How long does it take for the inductor to fully charge up? c) Write the charge equations for i¿(t) and vi(t).

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7. For the circuit below:
the switch is open for a long time, it closes at t = Os
a) What is the charging time constant for this circuit?
b) How long does it take for the inductor to fully charge up?
c) Write the charge equations for iz (t) and vi(t).
ii.
i.
Now the switch opens after the inductor is fully charged.
a) What is the discharging time constant for this circuit?
b) Write the discharge equations for i (t) and vi(t).
c) Roughly sketch i¿ (t) and v¿(t) for the charge and discharge phases.
0.5 A
40 V
280 N
200 N
300 N
4 H =
Transcribed Image Text:7. For the circuit below: the switch is open for a long time, it closes at t = Os a) What is the charging time constant for this circuit? b) How long does it take for the inductor to fully charge up? c) Write the charge equations for iz (t) and vi(t). ii. i. Now the switch opens after the inductor is fully charged. a) What is the discharging time constant for this circuit? b) Write the discharge equations for i (t) and vi(t). c) Roughly sketch i¿ (t) and v¿(t) for the charge and discharge phases. 0.5 A 40 V 280 N 200 N 300 N 4 H =
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