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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 its series-field resistance is 0.1 . As
Q. A three-phase, 600-kVA, 2300:230-V,Y-Y trans-former bank has an iron loss of 4400Wand a full-load copper loss of 7600 W. Find the efficiency of the transformer for 70%full load
Question: A DC, separately excited motor is supplied from a 240-V source. When the motor is unloaded, it draws 1A of current from the source. When the motor is loaded, it draws
Q. Illustrate Inductance with example? An ideal inductor is also an energy-storage circuit element (with no loss associated with it) like a capacitor, but representing the magn
What is Q-switching in laser ? Give its application. Discuss the elementary idea of mode locking. Generation of high power pulses There are three basic techniques to gene
advantages and disadvantages of wein''s bridge
Singular Value Decomposition (i) initialize a 2x2 matrix m=[4 0.5;0.5 7] Factorize the matrix with SVD [u d v]=svd(m) How the matrix u and v differ? Why is that?
A DT LTI system has the following impulse response: h(n)=[cos(pi/+delta(n)] u(n-3)u(n-2) (a) Find the system’s frequency response h(e^jw ). (b) Sketch the magnitude and phase respo
1- Φ Half Bridge Inverters 1-Φ bridge inverter may be of two type 1-? half bridge and 1-? full bridge inverter. 1-? half bridge inverter with resistive load to explain
Q. A practical current source is represented by an ideal current source of 200 mA along with a shunt internal source resistance of 12 k. Determine the percentage drop in load curr
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