Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem1)

find out dc voltage applied to the 10 Ω load resistor in acircuit shown below (assume diode threshold voltage is 0.7 V and bulk resistance is 0 Ω).

2452_circuit.jpg

problem 2)

What value must R be in a circuit shown below to set up the diode current of 0.50 mA? (assume diode threshold voltage is 0.7 V and bulk resistance is 0 Ω).

 

623_circuit_2.jpg

problem 3)

find out base current entering each transistor, IB1 and IB2, and total current gain, βtotal, for the following circuit (assume that each transistor is made from silicon and has the VBE of 0.7 V).

622_circuit_3.jpg


problem 4)

Factory has the maximum demand of 400 kW at a lagging power factor such that 600 kVAr of reactive power has to be supplied. Consider effect of adding capacitor banks in the two stages, each drawing 200 kVAr leading. find out power factor and apparent power in each case:
a) without capacitive load
b) with one capacitive load of 200 kVAr
c) with two capacitive loads of 200 kVAr totalling 400 kVAr

problem 5)

Using the summing operational amplifier, design 3-bit digital to analogue converter (DAC). Assume digital inputs are generated from the TTL circuit (logic 0 equal to 0 V, logic 1 equal to 5 V). Converter output must feed the speaker that has the maximum input voltage of 3.5 V. Draw the diagram of your completed circuit design and describe its operation.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M9484

Have any Question? 


Related Questions in Electrical & Electronics

Discuss the role of load factor on the cost of electrical

Discuss the role of load factor on the cost of electrical energy.

Questions -problem 1 - a series rlc network has r 2 komega

Questions - Problem 1 - A series RLC network has R = 2 kΩ, L = 40 mH and C = 1μF. Calculate the impedance at resonance and at one-fourth, one-half, twice, and four times the resonant frequency. Problem 2 - Design a serie ...

Assignment -problem 1 -a consider the simplified dc system

Assignment - Problem 1 - a) Consider the simplified dc system shown in Fig. 1. Only one converter is modeled, with the remote end represented by a dc source. The ac system is rated at 345 kV, with the converter transform ...

Electrical engineering questions -q1 two ideal voltage

Electrical Engineering Questions - Q1. Two ideal voltage sources designated as machines 1 and 2 are connected, as shown in the figure below. Given E 1 = 65∠0 o V, E 2 = 65∠30 o V, Z = 3Ω. Determine if Machine 1 is genera ...

A four-pole star-connected squirrel-cage induction motor

A four-pole, star-connected, squirrel-cage induction motor operates from a variable voltage 50 Hz three-phase supply. The following results were obtained as the supply voltage was gradually reduced with the motor running ...

Question 1 in the voltage regulator circuit in figure p221

Question 1: In the voltage regulator circuit in Figure P2.21, V 1 = 20 V, V Z = 10 V, R i = 222Ω and P z (max) = 400 mW. (a) Determine I L, I z , and I L , if R L = 380Ω. (b) Determine the value of R L , that will establ ...

1 goalin this project you will solve a non-trivial design

1 Goal In this project you will solve a non-trivial design problem explicitly using the divide-and-conquer (D&C) approach. The main reason for using the D&C approach is the ease of the design process and the streamlined ...

Questions -problem 1 - solve for i0 in fig using mesh

Questions - Problem 1 - Solve for i 0 in Fig. using mesh analysis. Problem 2 - Use mesh analysis to find current i 0 in the circuit. Problem 3 - Use mesh analysis to find v 0 in the circuit. Let v s1 = 120 cos(100t+ 90 o ...

1 a name the three major groups of contamination and

1. (a) Name the three major groups of contamination and briefly describe their physical characteristics. (b) Where do the above contamination types come from? Give one example of each. 2. Name two processes metrics which ...

Research report1 read 3 to 4 journal articles about

Research report 1. Read 3 to 4 journal articles about digital control or industrial control, eg. one particular application, implementation aspect such as selection of sampling time, hardware etc. No text book example is ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As