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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
Discuss the term D/A conversion. D/A conversion: Digital-to-analog or analog-to-digital conversions are two very significant aspects of digital data processing. Digital-to-
12. A capacitor is to be constructed so that its capacitance is 0.2µF and to take a p.d. of 1.25kV across its terminals. The dielectric is to be mica which, after allowing a safety
Ask The goal of this project is to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily. We want to accurately positio
thesis
What is memory mapping? The assignment of memory addresses to several registers in a memory chip is known as memory mapping.
Q. Compare RC coupled and Transformer coupling?
What is an USART? USART stands for universal synchronous/Asynchronous Receiver/ Transmitter. It is a programmable communication interface that can communicate by using either s
Explain Sampling at the Nyquist Rate? What would happen if we reduced the sampling frequency? In the time domain, we would be getting less samples for each period. In the frequ
current and voltage
NOR Gate NOR means NOT OR . it complements the output of an OR gate. The symbol of Nor gate in fig. (a) shows that a Nor gate comprises of an OR gate followed by a N
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