ESE EC 2021 Technical Quiz 9

In a series R-L circuit, R is 10 Ω and L is 20 mH, if the circuit current is 10 sin 314 t A, the phase angle θ between v and i will be

Study of the transients during switching process of any circuit is carried out using ____.

The resonant and damping frequency of a certain system was found to be 7.07 rad/sec and 8.666 rad/sec respectively. The dominant poles locations are

Consider a discrete memory less source with symbols with probabilities, respectively. Find the entropy of the second order extension of the source

A number M is stored in a 4-bits 2’s complement representation as

X3 X2 X1 X0

It is transformed into a 6-bit register as shown below

X3 X2 X1 X0 1

Which of the following operation is performed to transfer the 4-bits 2’s complement form into the 6-bit register?

The basic amplifier has a voltage gain of 1000. Lower and upper cutoff frequencies are 1 KHz and 30 KHz. If 0.9% of feedback is employed, approximate bandwidth of the amplifier with feedback is

For a discrete time LTI system with impulse response, the system has

Which of the following page replacement technique is best among the following options i.e. which one generally gives high hit ratio.