Using the principle of current mirrors, determine the currents (I1, I2, .....,I10) and the voltages (V1, V2, ...., V10) for the following circuit. We neglect the base currents (𝜷 ≫ 𝟏). On gives |VBE|=0.7 V We assume for reasons of symmetry that I9=I10 =I8/2 and I5 =I 6=I4

 

Please using laplace transform

a. Find , i.e. the current just before the switch is opened.

b. Determine the currents and in the circuit after the switch is opened. [10 marks]

 Solve this question

Find the voltage difference between a and b using the node voltage method:

   2. Consider the following circuit (18 pts): 

2A) Use the node voltage method to find the voltage difference between nodes A and B for t<0 s. (3 pts)

197. If a certain circuit has a current that is lagging the voltage by 45˚, then it displays