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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
A unity negative feedback control system has an open loop transfer function consisting of two poles, two zeros and a variable positive gain K. The zeros are located at -2 and -1, a
matlab program for verifying maximum power transfer
For the circuit in figure, find the current through each resistor.
what is
Discuss need of Pipelining. The simplest method for improving performance by hardware parallelism is pipelining. Pipelining has breaking up the operations to be performed in s
Describe the process control instructions STC - It sets the carry flag & does not affect any other flag CLC - it resets the carry flag to zero &does not affect any other fl
Assembly Languages ( Second Generation Language) To overcome the difficulty of machine language assembly language was designed. After facing the difficulty of machine
Q. An antenna has an aperture area of 10 m 2 ,an aperture ef?ciency of 0.6, and negligible losses. If it is used at 5 GHz, determine: (a) Its power gain. (b) The maximum pow
I need help in Simulink model (.mdl) (discrete) for the topic “sensorless control of the pmsm using Back EMF method” with detailed explanation of the estimator (Back EMF method).
In this case, the armature is connected in series with the field coils. Thus I a = I f = I NB. At starting, the back emf is zero (because the m
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