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Q. Figure can also be considered as a simple model of a magnetically operated relay that is commonly used for the automatic control and protection of electric equipment. Consider the core and armature (shown as "Bar" in Figure of the relay to be constructed out of infinitely permeable magnetic material. The core has a circular cross section and is 1.25 cm in diameter, while the armature has a rectangular cross section. The armature is so supported that the two air gaps are always equal and of uniform length over their areas. A spring (not shown in the figure), whose force opposes the magnetic pull, restrains the motion of the armature. If the operating coil has 1800 turns carrying a current of 1 A, and the gaps are set at 0.125 cmeach, find the pull that must be exerted by the spring. You may neglect leakage and fringing.
a digital computer controlled rolling mill regulator system..
Semiconductors Conductivity in among those of metals and insulators. Conductivity can be changed over orders of magnitude through changes in temperature, optical excitat
Q. Which are the different FET amplifiers? A FET can be used as a small-signal amplifier by connecting one of its lead to signal ground. The other two leads then serve as the i
Q . Differentiate between an integrator and differentiator? Integrators 1 Integrators are circuits in which output voltage is proportional to the integral of the input.
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You have been requested by your Senior Engineer to design an Engine Control Unit (ECU) and prepare a report detailing your proposed solution. The client requires a design for a mic
Explain Thermoplastic materials. Thermoplastic materials: The properties of such plastic materials do not change considerably when they are melted and after that cooled and s
Addition of binary numbers Example: Add 110010102 ( -510). and 00000101 2 (+5 10 ) Solution : Binary signed
Problem : a) What is an "Embedded System"? Discuss the characteristics of Embedded Systems. b) Describe three downfalls of "Embedded Systems". c) Explain the difference b
SOL. Ramp Type VM: The operating principle of the ramp type DVM is based on the measurement of the time it takes for a linear ramp voltage to rise from 0 V to the level of the inp
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