Electrical Engineering Answers

Design an XNOR gate with two inputs A and B using only NAND gates .Mention the expression in terms of A and B at the output of each NAND gate in your circuit diagram.

Write the following Boolean function in sum of products form: f = (b + d)(a’ + b’ + c)

1. A transverse wave on a taut string is given by

y(x, t)=(0. 750 cm)cos[pi{(0.400 rad/cm)x + (250rad/s)t}]

[Note the 휋휋 inside the cosine function!!!]

a) What is the amplitude?

b) What is the period?

c) What is the (linear) frequency?

d) What is the wavelength?

e) What is the speed of propagation?

f) What is the direction of propagation (+x-direction or –x-direction)?

g) If the mass per unit length is 50.0 g/m, what is the tension in the string in newtons?

h) What is the displacement of a point on the rope located at x = 56.4 cm at time t = 0.115 s?

Cosx log(2y-8)+1/x]dx+(sinx/y-4)dy=0

Applications of disc method in electrical engineering

A closed cycle gas turbine unit operating is maximum and minimum temperature of 760 and 20 degree Celsius has a pressure ratio of 7/1. Calculate the ideal cycle efficiency and the work ratio

In a carnot cycle operating between 307 and 17 degree Celsius the maximum and minimum pressures are 60 2.4 and 1.04 bar.clclculate the cycle efficiency and the work ratio.assume air yo be working fluid.

What are the applications of disk method in ELECTRICAL ENGINEERING

cycle operating system between 307 and 17 degree Celsius the maximum and minimum pressures are 60 2.4 and 1.04. calculate the cycle efficiency and the work ratio. assume air to be the working fluid

Two coils A and B are so placed that 80% of the total Flux produced by one links the other. A has 2000 turns and B has 3000 turns. When the current in A is changing at a rate of 500A/s,the Flux linking it,is changing at the rate of 1m wb/s, calculate,

a)the corresponding EMF induced in each coil

b) the self inductance of each coil

c) the mutual inductance of each coil

d) the effective inductance of the two coils in series