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A moving coil galvanometer consists of a coil in a uniform magnetic field Bo, suspended fro a fibre of torque constant C, current I produces a deflection O=nABoi/c where n is the number of turns and A is the area of the coil. The period of oscillation T=2?(I/C)1/2 where I is the moment of inertia. The resistance of the coil and the circuit in which it is placed is adjusted to give a critical dumping Rc=n2 A2Bo2/2(ic)1/2 . if the minimum detectable current produces deflection equal to thermal -root mean square value O, show that minimum current is given by
imin =( ?KT/ TRc)1/2
A data hold is to be constructed that reconstructs the sampled signal by the straight-line approximation shown in Figure. Note that this device is a polygonal data hold with a dela
Why do we use XRA A instruction The XRA A instruction is used to clear the contents of the Accumulator and keep the value 00H.
Q. Implement the following Boolean functions by employing 8-to-1multiplexers. (a) F 1 (A,B,C) = Σ m i (0, 2, 4, 6) (b) F 2 (A,B,C) = Σ m i (1, 3, 7)
A 500KVA, 6 pole, 500v, 3 phase, wye-connected synchronous generator has a synchronous impedance of 0.1 + j1.5 ohms per phase. If the generator is driven at 1000 r.p.m., what is th
What is a PCI bus? Peripheral Component Interconnect: PCI bus was developed through Intel and introduced in 1993. This is geared specifically to fifth- and sixth-generation sys
Total Debt to Total Assets ratio A metric used to measure a company's financial risk by determining how much of the company's assets have been financed by debt. It is calculat
a) Describe Schmitt trigger with the help of transfer characteristics. b) Also get the expression of hysteresis voltage VH and output waveform for sinusoidal input signal
Q. Explain about Folded network? Folded network: When all the outlets/inlets are connected to the subscriber lines, logical connection appears as displayed in figure. In this
What is the use of 8251 chip? 8251 chip is mostly used as the asynchronous serial interface among the processor and the external equipment.
what component will be use for making or logic gates.
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