1. Figure 1 shows a signal, x(1). Sketch the following signals a) x(21 -4) b) x(3-1) x(1) 2 Figure 1 3. 2.

Q: An FM transmission has a frequency deviation of 20 kHz. a. Determine the percent modulation of this…

A: Given data : Carrier frequency deviation, ∆f=20 KHz

Q: Identify which of the following is an example of Absorption theorem or Law O a. A+ (B + C) = AB + AC…

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Q: Q34Cal culate the Nyquist frefenc Signal 12 Cos (2R 2200t)

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Q: Qy find the frequency thalasis for the Signal sown A 2

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Q: If the bandwidth of a signal is 4 kHz and the lowest frequency is 31 kHz, what is the highest…

A: This question belongs to circuit theory . It is based on the concept of bandwidth of the signal .…

Q: The video signal of the TV system uses frequency modulation. True or False 2. The unique operation…

A: In this question we will write about video signal of TV system and radio detector....

Q: x(1) 4 -1 1 2

A: Odd signal A signal is said to be an odd signal if it satisfies x(t)=x(-t). Even signal A signal is…

Q: The output voltage of an AM transmitter is 40 V when sinusoidally modulated to a depth of 100%.…

A: Given : In the given question they are discussing about the amplitude modulation system.   In…

Q: 13. A complex band-pass signal has a bandwidth of 200 kHz. What is the minimum sampling rate for…

A: Given a low pass filter with bandwidth of 200 KHz. Means minimum frequency(f min)  will be -100 KHz…

Q: dentify the advantages of FM over AM. (Check all that apply.) The capture effect in FM helps…

A: Advantages of FM over AM : 1. In AM (Amplitude modulation) most of the transmitted power wasted…

Q: Assume X = (AB), Y = (A+B), Z = A XOR B If the waveforms for the input signal A and B are as…

A: We need to draw the wave form  for NAND , NOR and XOR gate .

Q: How is the energy generated in non-radiative recombination dissipated

A: In this question we will write How is the energy generated in non-radiative recombination…

Q: The B-H curve of a cast iron electromagnetic material is a nonlinear curve. Select one: O True O…

A: B-H carve is a carve drawn between Magnetic flux density (B) and magnetic field intensity (H).…

Q: Radio signals are made up of Select the correct response: a. Voltages and currents b. Electrons and…

A: Choose the correct option Radio signals are made up of?

Q: the angular velocity of the input voltage (Vi) is very large, what happens to the magnitude of the…

A: In this question we will find output when angular frequency is very high...

Q: Chose the correct answer 2- The amount of data transmitted for a given amount of time is called a)…

A: The amount of data transmitted for a given amount of time is called bandwidth

Q: The figure below shows a satellite receiver uses two hytrodyne operations. It is used to receive…

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Q: FM signal is better than AM signal because * more immune to noise Less adjacent channel interference…

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Q: Find the frequency of wien bridge oscillator if R = 100Ω and C = 10nf, Then find Rf If R1=10kΩ *

A: Given data, R = 100 Ω. C = 10 nF. R1 = 10 kΩ.

Q: 2- The amount of data transmitted for a given amount of time is called a) Bandwidth b) Frequency c)…

A: Bandwidth is measured as the amount of data that can be transferred from one point to another within…

Q: For the input signal, which one is the output wave-form for the given circuit? Vin R: +V, V in Si…

A: Given : During positive half cycle of the input signal diode will be forward-biased & start…

Q: Figure (1) shows the block diagram of a wideband frequeney modulator using the indirect method, This…

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Q: Discussion: 1. Sketch the waveform for the message and phase modulation. 2. What is the difference…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Question 3 The spectrum in communications is a band of colours a set of frequencies the signal…

A: In communication spectrum which generally deals with the frequency components.   Bandwidth is…

Q: Signal c(t) is obtained from an addition and two multiplications operation. Signal c) Figure Q.4 (b)…

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Q: Ql-A- Determine the period of the following signals, (c) x[n] (d) x[n] %3D %3D

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Q: If an FM broadcasting station is connected to a repeater via a coaxial cable with 20MHZ bandwidth.…

A: Frequency Modulation In frequency modulation  frequency of carrier signal varied in accordance with…

Q: An AM transmitter antenna current is measured with no modulation and found to be 2.6 amperes. With…

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Q: After helping your friend, you decided to take a walk. You found a device dis- carded by the side of…

A: A message signal is transferred from the sender to the receiver end. The signal is transmitted…

Q: Q3. What happens if (modulation index) u > 1? Answer: H.W.

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Q: A power gain test of reference antenna and a test antenna resulted in the following data (a) Input…

A: The power gain (Gp) can be computed in the following way: In this case, the values of the input…

Q: A desired signal at 26.2 MHz is mixed with a local oscillator of 42.0 MHz. What is the image…

A: Given: Desired signal frequency, ftrx=26.2 MHz Local oscillator frequency, f0=42.0 MHz

Q: How much is the frequency offset of the image frequency from the local oscillator using HSI? O F IF…

A: The solution is given below. The answer is option B.

Q: Q3:- Design Armstrong indirect FM modulator to generate an FM signal with f. = 400 MHz and Af =…

A: fc=400 MHz;  ∆f=97.2 KHzfc1=100 KHz; ∆f1=25Hz to design Armstrong indirect FM modulator given that…

Q: jestion i. An AM radio transmitter operating on 3.9 MHz is modulated by frequencies up to 4 kHz. a.…

A: As per Bartleby guidelines we are allowed to solve only one question, since question I and ii are…

Q: Q1-if X(t) = cos (wt), had been applied to the circuit , draw the waveform at points (a, b and c)?…

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Q: Clearly label the following on the experimental setup below. 1. the exact placement of the hydrogen…

A: The given experimental setup is,

Q: Discussion: 1. Sketch the waveform for the message and phase modulation.

A: This is an easy question based on communication system subject of electrical engineering. In this…

Q: After helping your friend, you decided to take a walk. You found a device dis- carded by the side of…

A:

Q: If the bandwidth of a signal is 4 kHz and the lowest frequency is 31 kHz, what is the high…

A: Given Bandwidth, BW = 4 kHz Lowest frequency, f1 = 31 kHz Let the highest frequency = f2

Q: transmitter has a 1 kW carrier that is modulated by three different sine waves of equal amplitudes.…

A: In this question we will find modulation index ...

Q: f 25 MHz of total spectrum is allocated for a duplex wireless cellular system and each simplex…

A: The message signals are transferred in the form of frequency. Different signals require different…

Q: A circuit that generates a suppressed carrier signal with two sidebands is: Select your answer.…

A: In this question , we will write about generation of double side band suppressed carrier signal.....

Q: If the energy of signal x(t) is E then calculate eneogy of signal xC-at+b).

A: The energy of a signal x(t) is E. That is, Ex(t)=∫-∞∞x(t)2 dt=E Where, E is energy. Let ,…

Q: Example 2.14 A receiving antenna picks up 50 u volt signal. The transmitting station switches to a…

A: Let V2 represents the voltage received by the receiving station. According to the given information,…

Q: Q2: Draw the spectrum of the sampler output if the spectrum of the original signal in its input is…

A: A message signal is transferred from the sender to the receiver end. The signal is transmitted…

Q: 3. Clipper and Clamper Circuits 3.1 A diode clipper Diodes may be used in a number of ways to change…

A: Given:  A clipper circuit diagram and input output wave forms.  we have to discuss about the result…

Q: Find Reg between a and b Using Delta aud star trans ters?

A: 10, 20, 5 are in star , we will convert it into delta. Finally we will reduce into single resistor…

Q: 1.48. Determine the even and odd components of the following signals: (a) x(t)=u(t) (b) x(t) = sin…

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Types of Thyristors

With four layers of alternating P- and N- materials, a thyristor is a solid-state semiconductor device. It acts as a type of bi-stable switch and it conducts when the gate receives a current trigger and continues to conduct until the voltage is reverse biased across the device or by some means until the voltage is removed. The silicon-controlled rectifier is considered synonymous with thyristors by some sources. Thyristors are defined as more complex by other sources as it contains at least four-layer of alternating N-type and P-type substrate. They find large applications in the control of electrical power supplies, electric motor speed control, and ranging of light dimmers because thyristors can control large amounts of power supplies and voltage with a small device. The circuit symbol of the thyristor is given below.