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One meant kilovolts the effective, the other the peak or maximum. If the first had said that was using one hundred effective and the other one hundred and forty peak there could have been no misunderstanding.

When the first leports the German technique were published in this country one often heard that they were using one hundred and forty one hundred and fifty thousand volts while our best was about one hundred thousand.

It was soon shown, however, that their one hundred and forty was equal our one hundred, because were in the habit using the effective voltage term while they used the peak. At this pomt may well asked what the essential difference and why either rating cannot used provided followed the Qualifying adjective effective or peak ? There are two good reasons which the second the most important First where two terms are used interchangeably for the same thing, each requiring a qualifying adjective, that adjective will frequently used with resulting confusion as jusi what the author meant.

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The second and most important reason requires a little discussion.

It has been established that the composition the ray bundle from a tube excited a pulsating or alternating current dependent the maximum or peak voltage reached at each current pulsation, other factors being equal.

Therefore, essential know for purposes comparison or standardization, the maximum or peak voltage applied and maintained at the tube terminals.

The distance a spark ill jump between points or spheres, all other factors being equal, dependent this maximum voltage.

The peak voltage there sine waves, in which case the relationship the effective the peak voltage a constant I. The engineer needs know the effective or average voltage because the power developed in electrical machinery writers wanted online depends this value, and not the peak.

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The value insulation, however, depends the peak voltage. We may receiving a pure sine wave in the primary homework help essay writing our transformer, but what after stepping and rectification? Suppose are getting such a wave, the relation then. but suppose that instead a pure sine wave leaving the transformer a semrellipse, the ratio then becomes.

if an inverse sine. or if an inverse ellipse.

If the wave from an induction coil or contains harmonics the ratio will vary still more. If measure the effective voltage means an electrostatic voltmeter or a meter the primary and record as being one hundred kilovolts effective in the report a certain treatment the following errors in duplicating the dosage another operator may homework help chat with tutor result. Assume that the other operator wishes tD use the same voltage and use a spark gap, which measures the peak, as his measuring instrument. Let also assume that calibrated in effective kilovolts. If both transformers deliver a pure sine wave will using the same voltage as the first operator. If the first operator's machine while receiving such a wave at the primary was delivering an inverse sine wave at the tube was actually applying two hundred and ten thousand peak volts at the tube terminals. If the second machine was delivering a sine wave personal statement service oxbridge the second operator would applying one hundred and forty-one thousand four hundred peak volts at the tube terminals good essay writing services although both would record the voltage or gap as the same. These comparisons could carried indefinitely thesis in writing for every imaginable combination conditions. Why, then, if the sphere gap measures the peak or maximum voltage rnd has been accepted as the most accurate practicable method high voltage measurement the european Institute Electrical Engineers, and as the average quality the ray bundle from an x-ray tube depends the peak voltage, should use any other term than the maximum or peak voltage when recording the in our records? It would a great step in the standardization The second factor affecting both the quality and quantity radiation the filter will only taken briefly, as has been thoroughly discussed in the literature during the past year. 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