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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. Show the Frequency response of Rc Coupled Amplifier? 1. At low frequency i.e,less than 50 Hz reactance of Cc is going high hence same part of the signal will pass from one s
Core Functionalities of the GIS: The GIS should be able to: 1 Create layers from all supported data sources involving coverage feature classes, shape files, compu
We have seen that a practical power source may be modelled by an ideal constant voltage source in series with a resistor - a Thevenin equivalent circuit Alternati
what is serveces of operating system?
For the 3-bit 2 n -R D/A converter of Figure, calculate the analog output voltage when the input is (a) 100, and (b) 010. Solution a. For the binary input 100, switches con
Determine the resistance and temperature-coefficient: A platinum coil has a resistance of 3.146 Ω at 40 o C and 3.767 Ω at 100 o C. Determine the resistance at 0 o C and the t
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Hardware Requirement- Server of adequate sizing for enterprise-wide deployment for storing maps and geospatial data. Application server and web server. Desktops
Q. Illustrate Differential phase-shift keying? In order to eliminate the need of a local carrier, DPSK has been developed in which the receiver uses the received signal to act
Q. Two single-phase transformers, each rated 2400: 120-V, are to be interconnected for (a) 4800:240- V operation, and (b) 2400:120-V operation. Draw circuit diagrams and show polar
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