7.40 In the circuit of Fig. 7.21, VBE is adjusted so that VC = 1 V. If VCC = 3 V, RC = 2 kΩ, and a signal vbe = 0.005 sin ωt volts is applied, find expressions for the total instantaneous quantities iC(t), vC(t), and iB(t). Assume linear operation. The transistor has β = 100. What is the voltage gain?