ISRO 2023 Quiz 46 Revision

From the below given Nyquist plot, calculate the number of open loop poles on the right hand side of s-plane for the closed loop system to be stable.

The Zener regulator circuit shown below consists of Si based Zener diode and Ge diode. The cut-in Voltage of Ge diode is 0.2 Volts, whereas cut-in Voltage of Si-diode is 0.7 Volts.

The output voltage (V_o) of the Zener regulator circuit is

Consider the resistive network shown below, the value of Norton current across the terminal AB

A data sequence x[n] = {1, 2, 3, 4, 5} passes through a linear time-invariant system with impulse response h[n] = {5, 4, 3, 2, 1}. The output of the filter will be