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Q. A dc series motor operates at 750 r/min with a line current of 100 A from the 250-V mains. Its armature-circuit resistance is 0.15 and itsseries-field resistance is 0.1 . Assuming that the flux corresponding to a current of 25 A is 40% of that corresponding to a current of 100 A,determine the motor speed at a line current of 25 A at 250V.
Questions: A magnetic core with a primary winding with 40 turns and a secondary winding with 80 turns has a leakage path dominated by an air gap as shown in the figure. The iro
Q. Explain the conditions under which an RC circuit behaves as Integrator? Integrator is a circuit in which the output voltage is proportional to the integral of the input. Out
Diode current: Zener region: when the reverse biased voltage is increase to a very high value then a point is reached where will is suddenly going a very high value. Th
A 2300-V, three-phase, wye-connected, round rotor synchronousmotor has a synchronous reactance of 3 per phase and an armature resistance of 0.25 per phase. The motor operates on
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Q. A voltmeter with a full scale of 100 V has a probable error of 0.1% of full scale. When this meter is employed to measure 100 V, find the percent of probable error that can exis
Determine the equivalent winding resistance: A 50 kVA, 2200/110 V, 50 HZ' transformer contain an HV winding resistance of 0.15 Ω and a leakage reactance of 0.45 Ω. The LV wind
Q. What is inter digit time? Break time is nominally 61 ms and make time is nominally 39ms. Digits are separated by idle period of 300 ms known as inter digit time. It is vital
Q. Explain about Transistor Amplifiers? Amplifiers are circuits that produce an output signal which is larger than, but proportional to, an input signal. The input and output s
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