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A relay is essentially an electromechanical switch that opens and closes electrical contacts. A simplified relay is represented in Figure. It is required to keep the fenomagnetic plate at a distance of 0.25 cm from the electromagnet excited by a coil of N = 5000 turns, when the torque is 10 N · m at a radius r = 10 cm. Estimate the current required, assuming infinitely permeable magnetic material and negligible fringing as well as leakage.
(a) Express the storedmagnetic energyWm as a function of the flux linkage λ and the position x.
(b) Express the coenergy W m as a function of the current i and the position x.
The resistance of a wire is 60 ? at 25 o C and 65? at 75 o C. Find the resistance of wire at 0 o C and value of temperature co-efficient at 0 o C. Ans: Given R 25 = 60 ? a
CMP Compare Instruction This instruction is used to compare the contents of register or memory with accumulator the contents of the operand remain unaffected. There are tw
PNP The other kind of BJT is the PNP with the letters "P" and "N" standing for the majority charge carriers inside the dissimilar regions of the transistor. Figure:
Give the applications of carbon. Carbon : These materials used in the field of electrical engineering are manufactured from graphite and the other forms carbon as coal and so
Induction motors are often braked rapidly by a technique known as plugging, which is the reversal of the phase sequence of the voltage supplying the motor. Assume that a motor with
Q. What is Enhancement MOSFETS? Figure illustrates the cross-sectional structure of an n-channel enhancement MOSFET and its symbol showing as a normally off device when used fo
How much would it cost for the following?
Given the INPUT: • An array of 64-bit unsigned integer elements stored in the memory starting at a known location SOURCE. • The size of the array (i.e., number of elements) stored
A microstrip antenna system operating at 915MHz must be designed using Rogers RO3010 substrate with the thickness of 0.635mm.
Determine Impedance in each branch - delta connection: A delta connected balanced 3-phase load is supplied from a 3-phase 400 V supply. The line current is 30 Amp and the powe
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