In the circuit shown below, assume that the voltage drop across a forward biased diode is 0.7V. The thermal voltage V_t = kT/q = 25mV. The small signal input v_i = V_P cos ($$\omega t$$) where V_P = 100mV. The ac output voltage v_ac is

In the circuit shown below, assume that the voltage drop across a forward biased diode is 0.7V. The thermal voltage V_t = kT/q = 25mV. The small signal input v_i = V_P cos ($$\omega t$$) where V_P = 100mV. The bias current I_DC through the diodes is

A dc power supply has a no-load voltage of 30V, and a full-load voltage of 25 V at a full-load current of 1A. Its output resistance and load regulation, respectively are