Consider the common-emitter BJT circuit shown in Figure (a). The static characteristics of the npn silicon BJT are given in Figure (b) along with the load line. Calculate iB for vS = 1 V and 2 V. Then estimate the corresponding values of vCE and iC from the load line, and compute the voltage amplification Av = ΔvCE/ ΔvS and the current amplification Ai = ΔiC/ ΔiB.