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The core of a transformer operating at 50 Hz has an eddy current loss of 100 W/m3 and the core laminations have a thickness of 0.50 mm. The core is redesigned so as to operate with the same eddy current loss but at a different voltage and at a frequency of 250 Hz. Assuming that at the new voltage the maximum flux density is one-third of its original value and the resistivity of the core remains unaltered, determine the necessary new thickness of the laminations.
The diagram of FIGURE 2 shows a bi-directional opto coupler input interface circuit. When a supply voltage of 20 V is applied the LED carries a current and 2 V is dropped across it. Calculate the value of the LED current and the value of current t..
What is the different of having op-amps with different amount of poles, as an example some one come to you and offer you this new opamp, but this person tell you that this op-amp jus have two poles in its open loop response
the voltage drops across three resistors in series are measured 10v 15v and 25v. if the largest resistor is 47 ohms
if the LM324 is a single supply Op Amp, how can it be used to amplify an AC signal that oscillates between a positive peak and a negative peak
2 diodes connected with their anodes tied together, and cathodes tied to 10v and ground. The voltage at the anodes is 0.1v. The diodes conduct 1mA at 0.7v. find by what factor the reverse leakage current of the diodes exceed Is.
How would you develop a looping program in MIPS that will take a series of decimal numbers and arrange them in ascending order from smallest to largest. The sequence of nine numbers are: 5, 3, 8, 9, 2, 4, 1, 7, 6, 3, 8
Determine the frequency resolution when the data length is 73 samples. Without using the window function, is there any spectral leakage in the computed spectrum? Explain.
(a) Using the default power transistors, determine the minimum supply rail voltage required if TJ
Two bit Analog -to -digital converter-MatLab (711) Let X(t)= 0.8 cos(2*pi*t)+ 0.15, 0
A spherical region 0 = r = 2mm contains a uniform volume charge density of .5C/m3. While another region 4 = r = 6mm contains a uniform charge density of -1C/mm3. If the charge density is zero elsewhere, find the electric field E for
The Source feed two loads, both of which areY-connected. The impedance of load 1 is 8 + j6 Ω/φ. Thecomplex power for the a-phase of load 2 is 600
An npn transistor of a type whose P is specified to range from 60 to 300 is connected in a circuit with emitter grounded, collector at +9 V, and a current of 50 pA injected into the base.
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