esculent
发表于 2025-3-23 10:04:15
,Neuere Ausführungen von Fahrtreppen,eveloped for the representation of phase difference. If we take phasor OA of length . in figure 7.1. and turn it through 90° in an ., we say that we have . the phasor. To indicate that the phasor has rotated through 90°, we write.where j is the . Length OB is shown in bold type to indicate that it i
易怒
发表于 2025-3-23 16:14:37
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NIP
发表于 2025-3-23 19:17:34
Das Zusammenwirken von Beton und Eisens. When transmitting a given amount of power, a high supply voltage results in a small line current with consequent small . (. losses). Thus, when large amounts of power are transmitted over great distances, it is done at a very high voltage, typically several hundred kilovolts. In local distributio
Camouflage
发表于 2025-3-24 00:25:03
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detach
发表于 2025-3-24 05:23:25
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FIN
发表于 2025-3-24 07:29:42
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PHAG
发表于 2025-3-24 14:26:28
Circuit Theorems,The circuit theorems outlined in this chapter are illustrated by applications to d.c. circuits, but the theorems themselves can also be applied to a.c. circuits.
engagement
发表于 2025-3-24 15:28:11
Alternating Voltage and Current,Alternating voltage systems are almost universally used for the transmission of electrical power due to the ease not only with which the voltage can be generated, but also with which the magnitude of the supply voltage can be changed by transformer action (see also chapter 9).
吸引人的花招
发表于 2025-3-24 22:17:04
Grundlagen der virtuellen Realitäte manner of figure 4.1a. The electric field is represented by imaginary lines, each of which shows the path that would be traced out by the movement of a free electric charge. The . at any point is given by the direction of the force experienced by a unit positive charge placed at that point.
entrance
发表于 2025-3-25 01:27:58
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