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1. Name the three parts of a programmable logic controller (PLC) and explain why the PLC is preferred by designers over electromechanical relays.
2. Medium-voltage circuit breakers operating on system voltages between 600 volts and 15 kilovolts generally contain blow-out coils and a puffer. Describe a puffer.What is its funtion?
3. How is an electrical distribution system protected from lightning strikes? Name and describe the device used and describe its electrical connection to the distribution system it protects.
4. The first step in preparing a primary distribution cable for connection to a transformer, tap box, or other terminal equipment is to remove the semiconducting jacket. The next step is to crimp a flat lug onto the cable connector. List in any order any three of the next six steps in making the connection.
Simulate and compare BER of QPSK system and 4-QAM system without grey coding Eb/No=0.2.4.6.8.10
Q. What do you mean by addressing and numbering? Numbering and Addressing: In data and telephone networks, end equipment are more often single units than multiple devices uni
15 cells with emf for every cell are 1.5V and internal resistance 0.3Ω is linked in parallel. Calculate the value of current flow if the external resistance, 5Ω is linked to them.
1. Describe the magnetic effects of current? ( to achieve a pass grade, describe the magnetic effect of current) 2. Complete the diagram to show the direction of mo
An abrupt silicon (n i = 10 10 cm -3 ) p-n junction consists of a p-type region containing 10 16 cm -3 acceptors and an n-type region containing 5 x 10 16 cm -3 donors. a)
write a short notes of thermal compansation?
Q. What do you understand by common control? In some switching systems, control subsystem may be an integral part of switching network itself. Such system iscalled direct contr
Figure show two first-order triangular finite elements used to solve the Laplace equation for electrostatic potential. Find a local S -matrix for each triangle, and a global S -m
Q. Explain, with the help of structure, the working of UJT? List its applications One of the oddest semiconductor devices in use is the unijunction transistor (UJT). As its nam
Magnetic materials
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