The switch in the circuit below has been closed for a long time. At t =...

 

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The switch in the circuit below has been closed for a long time. At t = 0, the switch is opened. Using Laplace transform, perform the following tasks a. Find ¹₁(0¯), i.e. the current į₁ (t) just before the switch is opened. [5 mark] b. Determine the currents i₁ (t) and i₂ (t) in the circuit after the switch is opened. [10 marks] + R1 5k Ohm V1 40 V Switch t=0 R2 3k Ohm i2 R3 4k Ohm i1 L1 400 mH The switch in the circuit below has been closed for a long time. At t = 0, the switch is opened. Using Laplace transform, perform the following tasks a. Find ¹₁(0¯), i.e. the current į₁ (t) just before the switch is opened. [5 mark] b. Determine the currents i₁ (t) and i₂ (t) in the circuit after the switch is opened. [10 marks] + R1 5k Ohm V1 40 V Switch t=0 R2 3k Ohm i2 R3 4k Ohm i1 L1 400 mH