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Capacitors : These are electrical condensers having a system of electrical conductors and insulators. The simplest form consists of two parallel metal plates separated by a layer of air 01; some other insulator material, such as mica. The capacitors can store, and even regain, sufficient energy to pose a threat to life. Thus you must always short circuit capacitors when -they are not in use.
Q. An n-channel JFET is given to have V P = 3V and I DSS = 6 mA. (a) Find the smallest value of v DS when v GS =-2 V if the operation is to be in the active region. (b) D
Q. What is meant by armature reaction. Explain briefly the bad effects of armature reactions. Sol. By armature reaction is meant the effect of magnetic field set up
Q. What do you understand by demagnetizing and cross magnetizing effects of armature reaction in a d.c. machine. Derive the expression for calculation of demagnetizing and cross
Explain Extrinsic Semiconductor. Extrinsic Semiconductor: An intrinsic semiconductor is able to conduct some current even at room temperature but as this is not helpful for t
Explain about the typical embedded system hardware unit. Typical Embedded System Hardware Unit: Program Flow and data path Control Unit (CU): comprises a fetch unit for fetc
The site 450 kVA load is actually a three-phase, six pulse thyristor rectifier feeding a dc bus. Assuming that the voltage waveform at the site 11 kV bus is purely sinusoidal, calc
Q. The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13%with half rated current at unity power fa
Multiprocessing - Many Processors Many users Many Programs Multiprocessing or also called distributed processing system provides solution to problems of above timesharing
Transmission parameters are more effective than the hybrid parameters for simulation of the transmission line
Q Consider a three-phase, full-wave bridge recti?er, as shown in Figure, with a purely resistive load R. For each diode, determine: (i) efficiency, (ii) form factor, (iii) ripple f
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