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A 23 kVA, 50 Hz, 2300/230 V transformer has primary and secondary turns of 200/20. When rated voltage is applied, calculate the mutual core flux neglecting the winding voltage drops. At full load the leakage flux linking each winding is 1% of the mutual flux. Calculate the primary and secondary leakage reactances and the total reactance as referred to either side.
1.A shunt-connected DC motor operates at its rated terminal voltage. Its no-load speed is200 radians/second. At its rated torque of 500 Nm, its speed is 180 radian/second. Themotor is used to directly drive a load whose load torque TL depends on its ..
Draw two Bode plots clearly showing every break frequency and judge the stability as per Bode plots and tell why?
Determine the series resistance needed to convert a galvanometer to a voltmeter reading 15 V on full scale deflection if a current of 2.5mA causes full scale deflection and the resistance of the coil is 10.
Using a grid spacing of 30 mm and the Gauss-Seidel iteration method, determine the nodal temperatures and the heat rate per unit length normal to the page into the bar from the air.
Derive an expression for the cross-correlation function of the two outputs- Derive an expression for the cross-spectral density of the two outputs.
At oneparticular quiescent operating point, a BJT produces a 300 mAchange in collector current for a 0.1 volt change in thebase-emitter voltage. What is gm for thistransistor in millisiemens
Is there any new techniq invented to overcome this losses? May be laser type encoder
A modulating signal consists of two sinusoidal components: 1 kHz and 3 kHz. The transmitter carrier frequency is 80 kHz. If the signal is applied to an ideal DSB transmitter, indicate the output frequencies (in kHz).
A sinusoidal voltage wave of real amplitude B0, and frequency w, and phase constant B, propogate in the forward z direction toward the shorted load end in a lossless transmission line of characteristic impedance Z0.
How does a transistor switch compare to a mechanical switch In other words, a mechanical switch when it is ON has a zer impedance. What about the transistor switch
A pump has a displacement volume of 98.4 cm3. It delivers 0.00152 m3/s of oil at 1000 rpm and 70 bars. If the prime mover input torque is 124.3 N.m, a. What is the overall efficiency of the pump b. What is the theoretical torque required to operate..
Design a full subtractor, that is a circuit which computes a-b-c, where c is a borrow from the next less significant bit. (Hint: Denote the difference as d, and a borrow from the next more significant bit as p, then develop a truth table for the p..
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