Using the model below , determine Zi for a common-emitter amplifier if B=80, IE(dc) = 2 mA, and ro = 40 k. Show solution in your bond paper.

What are the values of the elements in the Norton equivalent circuit shown in 16.53(a) (a) if I1 in 16.46 is increased to 60 μA?

A power system consists 200 buses out of which 15 buses are generator bus, 10 buses are the reactive power support bus and 5 buses are the ones with fixed shunt capacitors. The size of Jacobian matrix is N x N. Find the value of N 1

b)