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Q. A 25-kVA, 2200:220-V, 60-Hz, single-phase transformer has an equivalent series impedance of 3.5 + j4.0 referred to the primary high-voltage side.
(a) Determine the highest value of voltage regulation for full-load output at rated secondary terminal voltage.
(b) At what power factor does it occur?
(c) Sketch the corresponding phasor diagram.
Q. A single-phase, two-winding, 10-kVA, 440:110- V, 60-Hz transformer is to be connected as an autotransformer to supply a load at 550 V from a 440-V supply. Draw a schematic diagr
Q Consider a three-phase, full-wave bridge recti?er, as shown in Figure, with a purely resistive load R. For each diode, determine: (i) efficiency, (ii) form factor, (iii) ripple f
Q. (a) Show by applying Ampere's circuital law that themagnetic field associated with a long straight, current-carrying wire is given by B φ = µ 0 I/(2πr), where the subscript φ d
Q. A magnetic force exists between two adjacent, parallel current-carryingwires. Let I 1 and I 2 be the currents carried by the wires, and r the separation between them. Making u
Mixed Mode Simulator: The circuit is preprocessed. The test points and waveform markers are located in input and output of the circuit. GND net is set like reference net.
design ic 723 regulator
Difference between bootstrip sweep circuit and Miller sweep circuit
One battery having of four cells, connected in series. Emf of each cell is 1.45V and internal resistance of 0.04Ω. if a load resistance of 5Ω is connected to the battery, draw the
this is my final year project and i need help on how to about it.
Question: a) Describe two mechanisms by which electrons can be excited from the valence band to the conduction band? b) Given that the direct-band gap energy for Gallium N
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