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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
Suppose that the length of a 10Base-5 cable is 2500 metres. If the speed of propagation in a thick co-axial cable is 60% of the speed of light, how long does it take for a bit to
Explain graphics adapters. Video card converts digital output by the computer in an analog video signal and sends the signal by a cable to the monitor also termed as a graphic
Define Characteristics of Discrete Time Systems - Linear? A discrete-time system is said to be linear if it obeys the principles of superposition. That is, the response of a li
why h parameter used in low frequency transistor amplitfier
Q. Use (a) mesh analysis and (b) nodal analysis to determine the voltage ¯V at the terminals A-B of Figure.
Consider the RC circuit of Figure (a) with R = 2 ,C = 5F,and i(t) = I = 10 A (a dc current source). Find the expressions for the capacitor voltage vC(t) and the capacitor current
Define the basic working principle , process characteristics,advantages, disadvantages and application of Laser Beam Machining Process.
what is couple circuit ?
Q. Which of the 3 transistor configuration is best to use in cascade if maximum voltage gain is to be realized? The common collector configuration is not used for intermediate
how to derive its transfer function
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