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a 3-phase slip ring induction motor gives a reading of 60volts,across a slip ring of open circuit. When at rest with normal statervoltage applied, the rotor is star connected and has an impedanceof (0.6+6j)Ω per phase. Find the rotor current when the machines is(i) At standstill with sliprings joined to a star connected starterwith phase impedance of (5+4j)Ω.(ii) Running normally with 4% slip.
A 60-turn coil carries a current of 2A and lies in the plane x + 2y- 5z = 12 such that the magnetic moment m of the coil is directed away from the origin. Calculate m, assuming that the area of the coil is 8cm2.
A delta connected load consists of three identical impedances Z=45 at 60 degrees per phase. It is connected to a three phase, 208-V source by a three phase feeder with conductor impedance Zfeeder=(1.2+j1.6) Ohms per phase.
Write and test a program for the EASy68k to input a string from the keyboard and output a reversed string to the screen. Use a subroutine to perform the string reversal operation.
How would you determine whether a given function, f(t), had finite or infinite energy. Give an example of a function with finite energy and one with infinite energy.
A transconductance amplifier with Ri = 2 kΩ, Gm = 40 mA/V , and Ro = 20kΩ is fed with a voltage source having a source resistance of 2kΩ and is loaded with a 1kΩ resistance. Find the voltage gain realized (from the source internal voltage to the o..
Use nodal analysis to find VO in the network given below. Identify and label each node otherwise you will lose your marks. Write each step of the calculation to get maximum marks and also mention the units of each derived value.
A motor with efficiency of 76% supplies 20 hp to a load. it's power factor is 0.6 (lagging). A voltage of 440 VAC (RMS), 60 hz is applied to the motor. a) what is the real power applied to the motor in Watt
The resistance of the coil is 0.2 ohm. The inductance of the coil is 1.2e-4 H. The rotor inertia is 1.0e-5 kg m2. The current to torque gain is 0.03 Nm/A. The friction torque is 0.09 Nm. A 12 V voltage source is applied to the motor.
a. Tablulate the truth table for an 8x4 ROM that implements these Boolean functions. b. Tabulate the PLA programming table for these functions. Minimuze the number of product terms. c. Implement this circuit using a PAL with 3 inputs, 4 outputs and 3..
The binary-coded-decimal (BCD) format uses 4 bits to represent 10 decimal digits. For example, 259 in base 10 is repesented as "010 0101 101" in BCD format. A BCD incrementor adds 1 to a number in BCD format.
in a RLC series circuit R=500Ω L=0.4mH and C=100pF the circuit is connected to the terminals of an ac source with an rms voltage of 1V, and a variable frequency calculate the following A) resonant frequency
A 100 W bulb takes 0.833A and a 200 W bulb takes 1.67 A from a 120V source. If the two bulb were connected across a 240 V source, what current in amperes will flow through the bulbs?
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