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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
Transistor A transistor is a semiconductor device that is employed to amplify and switch electronic signals. It is made up of a solid piece of semiconductor material, with min
Explain BIOS The IBM PC has in its ROM a collection of routines, each of which performs some particular function such as reading a character from keyboard, writing character to
how to design a single phase distribution circuit from a supply point to a load(lights)
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how to ca;lculte star point potential
MOV ( Move ) Instruction It copies the contents of the sources register into destination register. The general format is . This instruction is used to copy 8 bit from s
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