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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
Explain Atomic structure and Energy Band Diagram of Silicon. Silicon : It is other most commonly used semiconductor. Atomic number of it is 14. The no. of electrons in first,
Compute the efficiency of the transformer of Example corresponding to (a) full load, 0.8 power factor lagging, and (b) one-half load, 0.6 power factor lagging, given that the input
Why does digital signal processing require specialized hardware? A) It needs to perform analog as well as digital functions. B) General-purpose microprocessors cannot perfor
Add Register and Carry with Accumulator The contents of register R and the carry flag are added to the contents of the accumulator and result of addition is also sto
Please can you explain the operation of a transistor in a Common Emitter Class A audio Amplifier?
Q. Explain how phase angle measurement are carried out with vector impedance meter. Sol. Impedance measurements are concerned with both the magnitude (Z) and the phase
Q. Illustrate Sources and Loads? A source-load combination is represented in Figure. A node is a point at which two or more components or devices are connected together. A part
Static V- I Characteristics The static V- I characteristics of power diodes is shown in figure 1.2 when the anode is made positive with respect to cathode the power dio
A signal stands for 0110 with positive logic in which low stands for 0 and high stands for 1. If negative logic (in which low stands for 1 and high stands for 0) is used, what digi
Explain the Limiting the Spectrum This low-pass filter is known an anti-aliasing filter. These filters are originated at the input to most applications. Since they are required
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