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Suppose there are two transformers between your house and the high-voltage transmission line that distributes the power. In addition, assume that your house is the only one using electric power. At a substation the primary of a step-down transformer (turns ratio = 1:26) receives the voltage from the high-voltage transmission line. Because of your usage, a current of 48.0 mA exists in the primary of this transformer. The secondary is connected to the primary of another step-down transformer (turns ratio = 1:36) somewhere near your house, perhaps up on a telephone pole. The secondary of this transformer delivers a 120 V emf to your house. How much power is your house using? Remember that the current and voltage given in this problem are rms values.
A series-resonant RLC circuit has R = 80 ?, L=25mh, and C=10pF. A) Sketch and label the circuit. B) Find fo, the resonant frequency. C) At what frequency is impedance a minimum D) What is the magnitude of the impedance at this frequency
An ultrasound image analog signal needs to be converted to a digital bit stream. The bandwidth of the signal is from 500 kHz to 2.0MHz, and the necessary resolution is 12 bits. determine the required sampling rate and the data rate
For a new product sales are expected to be 2,000 products in year 1, increasing by 1,000 products each subsequent year to 5,000 products in year 4. Two different manufacturing equipment options are available a) Up front equipment purchase cost of $..
Is it possible to produce a large size dynamo which can satisfy the electricity needs of a home. Is is possible to use the electricity produced by the dynamo to run a motor which can operate dynamo.
A portable battery supplies electricity to an external circuit for 2 hours. The voltage across the terminals of the battery is observed to increase from initial voltage of 5V to 10V (linearly) and the current increases from 1A to 2A (linearly) in ..
(a) Design a simple PNP current source to give an output current of IO = 0.5 mA (nominal value). The transistor parameters are f = 50, VEE = 10 V, VCC = 10V, |VBE| = 0.7 V, |VCEsat| = 0.3 V and VA = 50 V (for all transistors)
Design an amplifier circuit to amplify the small output voltage of a transducer of 50mV peak to deliver an output voltage of 8V peak to a 10k ohm load. (This design will produce 1 simulated circuit and an ac output and gain verified using an oscil..
What is the conversion efficiency of an amplifier in which the effective value of the current through a 2.2-k? load is 5 mA and the drain on the 18-V dc supply is 3.8 mA
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
an object hose mass is 200 kg moves at a velocity of 50m/sec and altitude of 200m,both measuredc relative to the surface of the earth. the acceleration of gravity can be taken as constant at g=9.8 m/sq.sec.
An edge-coupled microstrip line with a ground plane spacing of 0.5 mm and dielectric constant of 10 is required to have even- and odd-mode characteristic impedances of Zoe=70 and Zoo=40
a sinusoidal voltage has a peak value of 15V, a frequency of 500Hz, and crosses zero with a positive slope at t=0.1 ms. write an expression for the voltage using a cosine function in terms of t and constant pi.
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