Electrical Engineering Answers

if the conduction current density J=5sin(wt-20z)ay +cos(wt-20z)az mA/m^2 then evaluate the volume charge density

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a circular loop of radius 0.1 m lies in the z=0 plane and has a resistance of 5ohm Given B=0.2sin103t az T then find the induced emf and current

Answer the question below. (Opinion)

1. When will there be a drawback in using a Virtual Memory?

2. Why drawback happens in using virtual memory?

How many characters per second can be transmitted over a 1200-baud line in each of the following modes? (Assume a character code of eight bits.)

a. Synchronous serial transmission.

b. Asynchronous serial transmission with two stop bits.

c. Asynchronous serial transmission with one stop bit

What is Direct Memory Access? Explain the working of DMA. What are the different kinds of DMA transfers?

Convert the following arithmetic expressions from infix to reverse Polish notation.

a. A * B + C * D + E * F

b. A * B + A * (B * D + C * E)

c. A + B * [C *D + E *(F + G)]

d. (A + B) * [C * (D + E) + F]     

1)   An instruction is stored at location 300 with its address field at location 301.

          The address field has the value 400. A processor register R 1 contains the

           number 200. Evaluate the effective address if the addressing mode of the

            instruction is (a) direct; (b) immediate; (c) relative; (d) register indirect;

                   (e) index with R1 as the index register.  

. A 120Vrms 60Hz source supplies four loads connected in parallel as shown below Load 1: 150 kVA, at 0.8 pf leading Load 2: 100 kVA, at unity pf Load 3: 200 kVA, at 0.6pf lagging Load 4: 80kW and 95kVAR (inductive) Find a) Power Factor b) Calculate the value of capacitance/inductance connected in parallel that will raise the power factor to unity

Using mathematical induction prove

1+4+7+10+…+(3n-2)=n(3n-1)/n