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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. What do you mean by Most and least significant digits? The MSD (most significant digit) in a number is the digit which represents the largest part of the number. Therefore i
show how vernier caliper works
Analysis of Frequency Response with PSpice and PROBE PSpice can readily accomplish the circuit analysis as a function of frequency, and PROBE can display Bode plots for magnitu
Analog-to-Digital (A/D) Converters An A/D converter converts analog input signals into digital output data in many areas such as process control, aircraft control, and telemetr
Illustrate how to replace the HT Fuse on a 6-pole and 4-pole structure? Ans: a) Open switch on 6-pole or 4-pole. b) Connect the discharge rod between earth and conduc
Q. Describe some of the features hindering developing countries from growing faster. Answer: One of the features that are able to be hold developing countries from growing fas
i) Calculate the eigenvalues of a 100 hp, 1150 rpm dc machine at rated flux with no extra load inertia. Use the "hot" value of the armature resistance. Calculate estimates of t
If a current of 20A flows for five minutes, find the quantity of electricity transferred. Quantity of electricity, Q = It = 20 x 5 x 60 = 6000C
Q. Due to what special property does an emitter amplifier work as a buffer amplifier? The circuit design of the emitter follower is such that it has a high input impedance and
#I want to get lecture notes on Electronic device.and circuits .
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