Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem 1: Determine the total R.M.S. voltage across a hundred ohm resistor placed as a load on a diode. With Tc = 1000 oC and go = .01mho, operating in the space-charge limited region. The bandwidth is as 5 KHz.

problem 2: The emission current of a temperature limited diode is 10 ma. Find out the R.M.S. value of the fluctuations component of the current in 20 KHz bandwidth.

problem 3: This is convenient to interpret the noise in a triode as being due to noisy resistor in series with the grid of a noise free value. Compute the value of this noisy resistor for a triode with mutual conductance of 2.6mA/V.

problem 4: A mixer phase consists of noise figure of 20db and this is preceded by an amplifier which has a noise figure of 9 db and an available power gain of 15db. Compute the overall noise figure referred to input.

problem 5: The equivalent noise temperature of cooled parametric amplifier is 20 degree Kelvin. Determine the noise figure.

problem 6: A radio receiver, joined to an antenna whose resistance is 50 ohm has an equal resistance of 50 ohm. Compute the receiver’s noise figure in db and its equal noise temperature at a supposed temperature.

problem 7: The noise figure of an amplifier at room temperature is .2db. Determine the equal temperature.

problem 8: The first period of a two phase amplifier has a voltage gain of 10, a 600 ohm input resistor, a 1600 ohm equivalent noise resistance and 27 ohm output resistance. For second phase these values are 25 ohm, 81 kohm, 10 kohm and 1 Mohm correspondingly.

Compute the equivalent noise resistance of this phase amplifier.

problem 9: The input resistor of the first phase of two phase amplifier is 600 ohm. The equivalent input noise resistance of these two phase amplifier was found to be 2.518 k ohm. Compute the noise figure of the amplifier if it is drawn by generator whose output resistance is 50 ohm.

problem 10: An amplifier operating over the frequency range from 1 to 20 MHz consists of a 10 kohm input resistance. Determine the RMS noise voltage at the input to this amplifier if the ambient temperature is 27oC?

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M97555

Have any Question? 


Related Questions in Electrical & Electronics

Suppose a pv module has the 1-sun i-v curve shown below

Suppose a PV module has the 1-sun I-V curve shown below. Within the module itself, the manufacturer has provided a pair of bypass diodes to help the panel deliver some power even when many of the cells are shaded. Each d ...

1 why is it that the distances r1 and r2 in the phase

1. Why is it that the distances r 1 and r 2 in the phase factors in equations (8.47a) and (8.47b) cannot be set equal to r, but the same quantities in the amplitude factors can be set equal to r? 2. What is an array fact ...

1 define the parts of flow specification in intserv2

1. Define the parts of flow specification in IntServ. 2. Distinguish between guaranteed services and controlled-load services in IntServ. 3. IntServ is normally called a destination-based service. Explain the reason. 4. ...

A neighborhood fuel cell power plant is to be designed fo

a neighborhood fuel cell power plant is to be designed fo an electric output of 2000kwh with liquid water product . Estimate the flow rates of hydrogen and oxygen during peak power production, assuming that 80% efficient ...

Consider a bar element as shown in the figure the

Consider a bar element as shown in the figure. The cross-sectional areas are A 1  and A 2  at nodes 1 and 2, respectively, and vary linearly. In addition, the gravitational acceleration is applied along the axial directi ...

1 if the plate shown is inclined at an angle as shown what

1. If the plate shown is inclined at an angle as shown, what are the forces F x  and F y  necessary to maintain its position? The flow is frictionless. 2. A steady, incompressible, frictionless, two-dimensional jet of fl ...

1 summarize maxwells equations in integral form discuss the

1. Summarize Maxwell's equations in integral form. Discuss the interdependence of timevarying electric and magnetic fields, with the aid of an example. 2. Which two of the Maxwell's equations are independent?

In a switch using the token bucket algorithm tokens are

In a switch using the token bucket algorithm, tokens are added to the bucket at a rate of r = 5 tokens/second. The capacity of the token bucket is c = 10. The switch has a buffer that can hold only eight packets (for the ...

1 is the cutoff wavelength dependent on the dielectric in

1. Is the cutoff wavelength dependent on the dielectric in the waveguide? Is the cutoff frequency dependent on the dielectric in the waveguide? 2. What is guide wavelength? 3. Provide a physical explanation for the frequ ...

Let xt be a signal whose fourier transform xomega is

Let x(t) be a signal whose Fourier transform X(ω) is nonzero only over 3 ≤ |ω| ≤ 9. Further, only frequencies 5 ≤ |ω| ≤ 7 contain useful information (the other frequencies can be considered to contain noise or different ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro