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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
Q. What are the Display Devices? Display devices can be categorized as on/off indicators, numeric, alphanumeric, or graphical displays. They may also be classified as active an
simplified common base hybrid model
#Explain charging and discharging of the capacitor ..
Experiments conducted by Faraday and others using current carrying coils resulted in 'The Laws of Electromagnetic Induction' which state: 1) 'If the magnetic flux threading throu
How does Expert system works? System uses a rule base and an inference engine together to simulate human reasoning whenever analysing a problem and arriving at a conclusion. To
short note on armature reaction
(a) Find the Thevenin equivalent of the circuit shown in Figure (a) at the terminals A-B. (b) Determine the impedance that must be connected to the terminals A-B so that it is m
General Purpose Registers Registers B, C ,D, E H , and L are 8 bit general purpose registers. These registers store 8 bit data temporarily for processing. Some
State the features of Washing machines Microprocessor would be used to control the below features, for instance: - Water temperature - Time for every cycle - Wash cy
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
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