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In: Electrical Engineering

Alternating current machines

Alternating current machines

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Alternating current machines
Alternating current machines
Describe the characteristics of direct current and alternating current. Beginning at the autotransformer, describe how the...
Describe the characteristics of direct current and alternating current. Beginning at the autotransformer, describe how the kVp across the x-ray tube’s anode-cathode is produced. Include details about how the transformer works (transformer law) and why it works (Faraday’s law). Finally, describe how diode rectifiers work and state how many diodes are needed for half wave rectification and for full wave rectification.
1.What are the three layers of magnetism? 2.Why is current alternating? 3.where can you find alternating...
1.What are the three layers of magnetism? 2.Why is current alternating? 3.where can you find alternating current in everyday life? 4.why is power moved at a high voltage?
Predict the electrical component (resistor, inductor or capacitor) that connected to the alternating current when the...
Predict the electrical component (resistor, inductor or capacitor) that connected to the alternating current when the following is observed. [5 marks] (a) The instantaneous voltage leads the instantaneous current by 90°. (b) The instantaneous current lags the instantaneous voltage by (π/2) rad. (c) The power dissipated varies between positive and negative values (d) The maximum power dissipated is VoIo. (e) The average power is zero.
1. Describe "rms" in the context of an alternating current. Why do we use it? 2....
1. Describe "rms" in the context of an alternating current. Why do we use it? 2. How is it possible to create a circuit in which adding more resistors and rearranging them actually decreases the Equivalent Resistance? Please question 1 and 2 - thank you
Please do this question in R and show the code too, please. The alternating current (AC)...
Please do this question in R and show the code too, please. The alternating current (AC) breakdown voltage of an insulating liquid indicates its dielectric strength. The article “Testing Practices for the AC Breakdown Voltage Testing of Insulation Liquids” (IEEE Electrical Insulation Magazine, 1995: 21–26) gave the accompanying sample observations on breakdown voltage (kV) of a particular circuit under certain conditions. 62 50 53 57 41 53 55 61 59 64 50 53 64 62 50 68 54 55 57...
After studying alternating current waveforms, half-wave rectification and capacitor smoothing, a student proposes the following hypothesis:...
After studying alternating current waveforms, half-wave rectification and capacitor smoothing, a student proposes the following hypothesis: The peak-to-peak value of the ripple voltage obtained with a capacitor smoothed, half-rectified sinusoidal waveform is proportional to the logarithm (base 10) of the value of the smoothing capacitor used. Design an experiment to verify the hypothesis above
In a LR circuit, R=10Ωand L=2H. If an alternating voltage of 120V and 60Hz is connected in this circuit, then the value current flowing in it will be?
In a LR circuit, R=10Ωand L=2H. If an alternating voltage of 120V and 60Hz is connected in this circuit, then the value current flowing in it will be?
/**    * Returns the string formed by alternating the case of the characters in   ...
/**    * Returns the string formed by alternating the case of the characters in    * the specified string. The first character in the returned string is in    * lowercase, the second character is in uppercase, the third character is    * in lowercase, the fourth character is in uppercase, and so on.    * Examples:    *    * <ul>    * <li><code>alternatingCaps("a")</code> returns <code>"a"</code>    * <li><code>alternatingCaps("ab")</code> returns <code>"aB"</code>    * <li><code>alternatingCaps("abc")</code> returns <code>"aBc"</code>    *...
maintenance charge will rise to $8,100. The machines have a current resale value of $8,100, but...
maintenance charge will rise to $8,100. The machines have a current resale value of $8,100, but at the end of year 2 their value will have fallen to $3,600. By the end of year 6 the machines will be valueless and would be scrapped. Hayden is considering replacing the copiers with new machines that would do essentially the same job. These machines cost $26,000, and the company can take out an eight-year maintenance contract for $1,300 a year. The machines...
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