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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
Boost Converter The boost converter has its output voltage always greater than input voltage like a buck converter boost converter has two modes.
Binary Subtraction Negative numbers are represented in 2 complement form and subtraction is also per formed using 2 complement method in microprocessor. Hence we will dis
Q. Explain the External Data Bus? External Data Bus: A bus which connects a computer to peripheral devices. 8088 microprocessor has 16-bit registers, 16-bit internal data bus i
Q. What do you mean by Sensors or Transducers? In almost all engineering applications there arises a need tomeasure some physical quantities, such as positions, displacements,
Calculations of sending line voltage
The growth in communications over the past 60 years has been phenomenal. The invention of the transistor in 1947 and the integrated circuit and laser in 1958 have paved the way to
A dc series motor is connected to a load. The torque varies as the square of the speed.With the diverter-circuit open, the motor takes 20 A and runs at 500 r/min. Determine the mot
connect two given points A and B by a parabolic curve when OA=60mm,OB=80mm and angle AOB=110 degree
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Give the operating modes of 8259a? (a) Automatic Rotation (b) End of Interrupt (EOI) (c) Fully Nested Mode (d) Automatic EOI Mode (e) Specific Rotation (f) Edge
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