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The secondary winding of a transformer has a terminal voltage of vs (t) = 282.8 sin 377t V . The turns ratio of the transformer is 50:200 (a = 0.25). If the secondary current of the transformer is (t) = 7.07 sin (377t - 36.87°) A , what is the primary current of this transformer? What are its voltage regulation and efficiency? The impedances of this transformer referred to the primary side are
Req = 0.05 W RC = 75 W
X eq = 0.225 W X M = 20 W
the voltage drops across three resistors in series are measured to be 10.0v 15.0v and 25.0v. if the largest resistor
A 50 cycle ac has a maximum instantaneous value of 42.42A.It crosses the zero axis in a positive direction when time is zero. Determine a)time when current first reaches a value 30a
A lightning bolt carrying 30,000 A lasts for 50 micro-seconds.If the lightning strikes an airplane flying at 20,000 feet, what is the charge deposited on the plane
design a system comprising a pulley actuated by a stepper motor to lift objects of maximum mass of 1kg. No gear box is required. A 48 VDC power source is available. Select a pulley (specify the diameter) and a stepper motor.
Let the component at Omega(C) = 2pi* 3000 be the corrupting signal. Design an appropriate lter to lter out this component of the input. You can use fir1 command for this. Plot the frequency response of this lter.
A)An amplifier has an input voltage of 0.5V and an output voltage of 12V.Calculate the increase in unit decibels. B)An amplifer has an input power 2W and an output power of 80W. Calculate the increase units of decibels.
Design and implement an algorithm that determines whether or not a given array of elements, list1, is completely contained within another given array of elements, list2. Consider two different scenarios: 1) both arrays are sorted; 2) both arrays a..
A sequential circuit with two D flip-flops, A and B; two inputs x and y; one output z; is specified by the following next-state and output equations: A(t 1) = x' y x A B(t 1) = x' B x A Z = B a) Draw a logic diagram of the circuit.
two fair dice are tossed until 3 is hit (i.e., the total number of dots is 3) Determine the average (i.e., expected) number of tosses required to hit a sum of 3
State the two conditions that must be satisfied to give an oscillatory output, and determine the required value of G to give an oscillatory output if H = -10 dB.
Further suppose that the coins C1, C2, and C3 are biased such that the probabilities of a head occuring for coins C1, C2, and C3 are 0.9, 0.75, 0.60, respectivley, while the fourth coin C4 is a fair coin. A. If the ou..
Design your concept of a device and describe its operation in terms of the topics in the course (solid states course). For example, maybe you can make a new type of solar cell based on semiconducting liquids
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