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Electricity is supplied from Grid to a Town, village or Industry through power lines or cables. What is the role of Transformer in transmission and what types of transformers are used in this process?
The electric field in a certain region of space is given by the vector field E(r ) = E(x, y, z) = (x ? z)xˆ + (z ? y) yˆ V/m Find any two points P( x1 , y 1, z 1) and Q( x2 , y2 , z2 ) such that the electric field at P is perpendicular to the elec..
In a typical AC circuit, the supply voltage is 10 VPK and frequency is 60 Hz. If the current through the system is 2 APK with a phase angle of 60o, then the power dissipated by the source is
Given the following voltage and current expressions, show the expression for the voltage across R2 in the circuit Note, R1=100 ohm, R2=300 ohm, and R3=200 ohm: a) v(t) = 10 cos (377t + pi/4) V b) i(t) = 5 cos (754t - pi/3) mA
Consider a 16-ary PSK system with symbol error probability PE=10-5. A Gray code is used for the symbol to big assignment. What is the approximate bit error probability. Repeat for a 16-ary orthogonal FSK system.
Design a voltage regulator circuit that provide a voltage at a maximum of 100 mA from a 6V battery. A maximum of 1W of power should be dissipated in any one component.
A solenoid of 1000 turns energized by a current of 250 mA. A flux meter measures a total flux of 1.0 mWb through the solenoid. The core has an average path length of 25 cm and a cross-sectional area of 6.5 cm2.
You will be asked to design the logic circuit such that a 7-segment display can be know the number of people who are in the room. Note: never going to be the case that a person joins the room at the same time another person leaves.
calculate the resistor's resistance. If the bandwidth were cut to 25 kHz, determine the expected output meter reading.
(1) What is a Darlington transistor configuration (2) What are its advantages and disadvantages (3) When is a Darlington configuration used (4) Can Drlington transistors be purchased (5) Do they come in complimentary pairs
What approximate minimum BER is required for voice signals, data signals and what is the approximate BER level for the optical fiber systems ?
For loads causing more than 1 V to appear across the generator, the output current is no longer assured but will be reduced by some unknown amount. This circuit limitation, occurring, for example, at the peak of a sine wave signal
The sampling frequency in a DSP system is fs=8 kHz. Anti-aliasing filter used in the system is the second-order Butterworth filter with cutoff frequency of fc=3.4 kHz. What is the percentage of aliasing level at the frequency f=2.5 kHz
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