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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 energy Wm as a function of the flux linkage λ and the position x.
(b) Express the coenergy Wm as a function of the current i and the position x.
What is the main thing to look for in calculations of air gaps?
(a) For the Zener diode series voltage regulator shown in the Figure. calculate V L , I Z , V R and P Z for R L = 1.2 KΩ and repeat it for R L = 3 KΩ ? Consider Zener breakdow
Estimate the software tasks required for developing the product. These are likely to include the development of various software routines, associated documentation and verification
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Q. Draw the complete circuit of a dual voltage source using 7805 and 7905. A voltage regulator is a circuit that supplies a constant voltage regardless of changes in load curre
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(a) Figure shows a circuit containing an amplifier block. Find the open-circuit voltage amplification of the circuit. (b) Let the output terminals be connected to a load resista
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