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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
Accumulator - Registers It is an 8 bit registers which is the most important part of the arithmetic and logic unit. It is used to store 8 bit data. The result of
For carry flag CC ( Call on Carry ) and CNC ( Call on No Carry ) Instructions CC Calls the subroutine form the specified memory location if carry flag is set (CY=
Diagram and explanation of cro
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Materials with 'hard' magnetic B/H characteristics often show a strong residual magnetism. This makes them suitable for making permanent magnets. If the ring material were magnetis
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