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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
Define the term embedded system according to Wayne Wolf and Todd. According to Wayne Wolf: This is any device which includes a programmable computer but is not itself intend
Semiconductor in Equilibrium Equilibrium in semiconductors implies the following: (i) Steady state: ∂Z / ∂t = 0 In which Z is any physical quantity like charge, volt
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The aim of this project is to design, construct and build a motorised base driven by two small dc motors. The motor drives are two H-bridges. The switching devices in these bridges
how to calculate voltage when 3 voltage sources are given?
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Q. Design the high-pass filter shown in Figure (by determining C) to have a half-power frequency of 1 MHz.
Permanent magnets are made of (A) Soft magnetic materials. (B) Hard magnetic materials. (C) Semi conductors. (D) Super conductors.
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