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A250-V, 50-kWshort-shunt compound dc generator,whose schematic diagramis shown in Figure, has the following data: armature resistance 0.05 , series-field resistance 0.05 , and shunt-field resistance 130 . Determine the induced armature emf at rated load and terminal voltage, while taking 2V as the total brush-contact drop.
Q. What is the need for bias stabilization in BJT? BJT or bi-polar junction transistor is a three terminal, two junction semiconductor device and the conduction is due to the m
Equal volumes of all gases contain the samenumber of molecules when the volumes are measured at the same p and T. Therefore for a given volume at the same p and T, with the same
Give the applications of steel. Steel : It contains iron with a small percentage of carbon added to this. Iron itself is not extremely strong but while carbon is added this as
Q. A four-pole, lap-wound armature has 144 slots with two coil sides per slot, each coil having two turns. If the flux per pole is 20 mWb and the armature rotates at 720 r/min, cal
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Transistor A transistor is a semiconductor device that is employed to amplify and switch electronic signals. It is made up of a solid piece of semiconductor material, with min
1. Introduction : Theory: The voltage measured across a load follows the Ohm's law which says that the current passing through a conductor between two points is direct
Q. A 25-kVA, 2300:230-V, 60-Hz, single-phase transformer has the following parameters: resistance of high-voltage winding 1.5 , resistance of low-voltage winding 0.015 , leakage
Speed control of DC Motor The DC motor are versatile motors among the available electrical motors due to their superior characteristics. These motors give a smooth sp
A circuit having of a resistor connected in series with a 0.5µF capacitor and has a time constant of 12 ms. Verify: (a) The value of the resistor (b) The capacitor voltage
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