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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. A balanced electrical industrial plant load of 9.8 MW with 0.8 lagging power factor is supplied by a three-phase 60-Hz system having a maximum rating (load-carrying capacity) of
Q. (a) An ampli?er with F 0 = 3 or 4.77 dB, f 0 = 4 GHz, and BN = 14 MHz is used with an antenna forwhich T a =200K. The connecting path loss is 1.45, or 1.61 dB at a physical t
why BETA a current gain parameter of common emitter amplifier is temperature dependent?
You should document each step of each iteration of your design. 1. You should include the following items from your preparation. a. A state diagram of the handshaking receive
outline what three features you would add (choose the three that you feel would be most advantageous) to the 16 bit version of the processor in order to enhance its power.
Describe the effect of following parameters. Abrasive grit size. Amplitude and frequency of vibration.
FIFO (First in First Out) stack is used in 8086.In this type of Stack the first stored information is retrieved first.
Prepayment Meters Usage of prepayment meters will extensively improve the revenue collection of the utilities. There are a number of ways in that prepayment assures revenue pr
Q. What is Schokleys Equation. Find out a relation between Vgs and Ids? Schokleys Equation is used for defining the relation between the Gate source voltage and the Drain curre
Survey Process - issues of power supply The steps to be followed in any like survey procedure are given below. There is always a possibility of going back to any previous ste
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