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“Alternating current”can be translated into ( ).
发布时间:
2024-04-06 12:24:20
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相关试题
1.
The major advantages of alternating current (AC)Over direct current (DC)is the fact that its current and Voltage can easily be increased or decreased
2.
The abbreviation for Alternating Current is _
3.
Time-varying current and alternating current are the same concepts.
4.
The general frequency converter usually uses the AC-DC-AC mode to convert the power frequency alternating current into three-phase AC with adjustable frequency and voltage, that is, the power frequency alternating current at the power grid side is first rectified into direct current, and then the direct current is converted into the alternating current with controllable frequency and voltage.( ) 选项: A:对 B:错
5.
Current flowing in only one direction is called c . alternating current 选项: A:omnidirectional B:direct C:sinusoidal
6.
The function of a ( ) is to convert alternating current to direct current.选项: A:Transformer; B:Rectifier; C:Filter; D:Voltage regulator
7.
___ is the type of current that periodically reverses the direction in Which it is moving. 选项:A、Constant currentB、Pulsating currentC、Alternating currentD、Direct current
8.
A power ( ) is an electric apparatus that changes direct current (DC) to alternating current (AC).选项: A: relay; B:inverter; C:charger; D:interface
9.
Alternating Current (AC) always flows in the same direction. 选项: A:正确 B:错误
10.
Which of the following according to fundaments of electrical energy is incorrect about alternating current? 选项: A、Frequency is zero B、Magnitude changes with time C、Can be transported to larger distances with less loss in power D、Flows in both directions
11.
The small alternating voltage is applied to the base-emitter circuit and causes large changes of base current which produce small changes in the collector current flowing through the load.
12.
An electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only. 选项: A、Filter B、Inverter C、Regulator D、Rectifier
13.
Current that travels in the same direction all the time is called ___. 选项: A:constant B:pulsating C:alternating D:direct
14.
智慧职教: One ( ) of 1000 VA nominal power transforms the direct current voltage from battery 1 into a single phase 115V, 400Hz, alternating current.
15.
"refuel"can be translated into“放油”
16.
The “significant digit " can be translated into ( )
17.
“Electromanetic field” can be translated into ( ).
18.
Which of the following phrases can be translated into
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