BARC EE Quiz 14

In the circuit shown in figure the silicon transistor used is operated in?

(Take V_{BE sat} = 0.8V , V_{BE ON} = 0.7V , V_{CE sat} = 0.2V)

Consider two signal x[n] = {1,2, –1} and h[n] = x[n].

The convolution y[n] = x[n] * h[n] is

The frequency response of a linear system G(jω) is provided in the tabular form below

The gain margin and phase margin of the system are

Which of the following DC generator is not suitable for parallel operation.

There are 4 units is a sting insulator. The voltage across the bottom most unit is 30% of total voltage. The string efficiency is

In the above circuit the switch is closed at t=0. A moving iron type voltmeter is connected across the load inductance to measure the voltage. Find the reading of voltmeter?

A 3-ϕ Bridge inverter (120^o mode) delivers power to a resistive source from a 400V DC supply. For a star connected load of 20ohm per phase. The RMS value of output current is