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Q. Show Step-motor control system?
Figure illustrates a system in which the prime mover used in the disk-drive system is a step motor driven by pulse commands. In response to each pulse input, the step motor moves by some fixed displacement. This all-digital system does not need an A/D or D/A converter.
Define temperature coefficient of resistance. Temperature coefficient of resistance is explained as the change in resistance of a material per ohm per degree change in temperat
Biasing: Bipolar transistor amplifiers have to be properly biased to operate properly. In circuits made up with individual devices (discrete circuits), biasing networks contai
Q. Explain working of TTL NAND gate? The TTL logic family uses only transistors instead of a combination of transistors and diodes. TTL has the same high and low ranges as DTL.
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.
Metering Techniques The techniques of metering could be categorized depending upon the voltage at which consumers are fed as: 1. LT (Low Tension) Metering, and 2. HT (Hi
Q. Explain about Elementary Direct-Current Machines? A preliminary discussion of dc machines, including Equations. The location of the brushes on the commutator arrangement con
Q. Explain Generating mode of rotating machines? The generating mode has mechanical power input and electric power output. The torque T applied externally to the shaft drives t
Q. Two shunt generators operate in parallel to supply a total load current of 3000 A. Each machine has an armature resistance of 0.05and a field resistance of 100. If the generat
Determine Capacitance of capacitor: A 20 Ω resistor is connected in series with a coil, a capacitor and an ammeter across a 25 V variable frequency supply. While the frequency
Compare with memory The contents of the memory of the memory location pointed by HL register pair are compared with the contents of the accumulator. The instruction f
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