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Explain Memory Mapped I/O Scheme.
Memory Mapped I/O Scheme: In such scheme there is only one address space. These address space is defined as all possible addresses which microprocessor can produce. Some addresses are allocated to memories and several addresses to I/O devices. This I/O device is also functions as a memory location and one address is assigned to this. In this scheme all the data transfer instructions of the microprocessor can be utilized for both memory and also I/O device. This scheme is appropriate for a small system.
Define Shunt VAr Compensation? Shunt capacitors absorb leading VArs (i.e. they are used to supply lagging VArs) whereas reactors are used to absorbs lagging VArs. Capacitors an
a single phase 120 volts, 60hertz supply is connected to a coil of 200 turns wound round a toroidal magnetic core with a mean length 100cm and cross section 20cm square &relative p
a shunt motor supplied at 230V rms runs at 900rev/min when the armature current is 30A.the resistance of the armature circuit is 0.4 ohms.find the armature input
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Explain ferrites and its uses in high frequency devices. A group of magnetic alloys show the property of magnetisation that change, with percentage of various constituent atoms
Q. A magnetic force exists between two adjacent, parallel current-carryingwires. Let I1 and I2 be the currents carried by the wires, and r the separation between them.
If the stator windings of an alternator were to be supplied by an AC of frequency f (as opposed to drawing an AC current from them as would be the case for an alternator) then
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