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Figure P1-13 shows the core of a simple dc motor. The magnetization curve for the metal in this core is given by Figure 1-10c and d. Assume that the cross-sectional area of each air gap is 18 cm2 and that the width of each air gap is 0.05 cm. The effective diameter of the rotor core is 5 cm.
(a) We wish to build a machine with as great a flux density as possible while avoiding excessive saturation in the core. What would be a reasonable maximum flux density for this core?
(b) What would be the total flux in the core at the flux density of part (a)?
(c) The maximum possible field current for this machine is 1 A. Select a reasonable number of turns of wire to provide the desired flux density while not exceeding the maximum available current.
The maximum strength of the magnetic field in an electromagnetic wave is 3.44E-6 T. What is the maximum strength of the wave's electric field
This is a research assignment to produce a short technical report (apprpximately between 1000-2000 words plus diagrams and figures) with an appropriate referencing list and citations following APA styling.
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[Hint: As you should explain, this is equivalent to showing that the sum of two four-vectors, one of which is forward light-like and one forward time-like, is itself forward time-like.]
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A BJT is operating at a collector current of 1mA ,when Vce=1v and it has early voltage of 75v.If Vce is increased to 11v,find collector current
The circuit of Fig. 11.84 portrays a wattmeter connected into an ac network.
1. Calculate the length of time it takes for a signal to pass down an Ethernet bus that is 300 m in length, assuming the velocity factor of the cable is 0.66. 2. For the Ethernet bus in problem 1 and a communication rate of 10 Mb/s
how a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice.the
A half-wave rectifier diode, which has an internal resistance of 20 Ω while conducting, is to supply power to a 1 kΩ load from a 110 VAC (rms) source.
task 1 explain the operation of sequential logic devicesq1 illustrate the principles of operation of the following
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