ESE EC 2021 Technical Quiz 7

Considered the following block diagram of a control system as shown below.

The system is said to be:

An instrument which is used to see the electric signal directly in waveform is

A uniform plane wave of 2 GHz frequency propagating in free space is incident normally on a lossless dielectric plate (ϵ_r = 4.25) of thickness 5 mm. The phase shift on transmission line through the plate is

The applied voltage and the resulting current in a passive network are in phase opposition, the average power flow is

The magnetic field through a material is should below, the material can be:

For given code executed in 8085 μp After the PSW value is?

MVI A, 63H

ORA A

ANI 36 H

DAA

Frequency spectrum and magnitude spectrum of certain signal is

|x (jw)| =1; |w| ≤ 2

∠x(jw) = ; |w| ≤ 2

Then the value of t for which x(t) ≠ 0 is

Which of the following represent correct I-V characteristics of the LED’s having different colours?

Phase deviation of angle modulated signal 10 cos [2 sin (2 × 10³ t) + 10 sin (4 × 10³ t)] whose carrier frequency 1MHz is …………..radians

The components in the circuit given below are ideal. If R = 2 and C = 1 the -3 dB cut-off frequency of the circuit in Hz is