10、这个电源上的电流为零点零零几安。 The current through the power supply is _______.
A.a few hundredth an ampere
B.a few thousandth of a ampere
C.a few hundredths of an ampere
D.a few thousandths of an ampere
第1题:
0.600读作()。
第2题:
Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后,需使用下列哪一类供电设备?()
第3题:
Which of the following will help dissipate heat through the heat sink when upgrading a CPU? ()
第4题:
A customer has a p650 on order and plans to put it in a current OEM rack. They are concerned that the p650 power supply may demand more current than the OEM PDU can provide. Which planning guide specification would provide the necessary requirements?()
第5题:
将R=5欧的电阻和L=10mH的电感串联后,接在交流电源e=100sin314t伏上,流过电路的电流的有效值为()
第6题:
把一个100欧的电阻元件接到频率为50赫、电压为10伏的正弦交流电源上,其电流为()安。
第7题:
CD10型电磁操作机构,其合闸电流可达十几到几十安。
第8题:
UPS表示()
第9题:
An administrator will replace five current servers. Which of the following is the MOST important to review before installing new servers?()
第10题:
UPS(Uninterruptible Power Supply)的中文名称是什么。()
第11题:
发光二极管的工作电流一般为()之间。
第12题:
第13题:
66盏100瓦220伏的白炽灯,对称地接到线电压为220伏的三相电源上,则白炽灯正常发光时电路中的线电流为()。
第14题:
雷电流的最大峰值可达()
第15题:
A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do? ()
第16题:
将一根均匀的电阻线,接在电压为U的电源上,通过电流为10安,再把这根电阻丝对折后,仍接在原电源上,这时通过的电流是()。
第17题:
已知电源电源内阻为4欧姆,线路和负载总电阻为10欧姆,电路电流为5安,则电源端电压为()。
第18题:
将一根均匀的电阻丝接在电源上,通过的电流为10A,再把这根电阻丝对折后,仍接在该电源上,这时通过的电流是()安。
第19题:
对于直流电源,人体允许电流为()。
第20题:
Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional?()
第21题:
A technician arrives in Germany and discovers that when their PC is plugged into the outlet, nopower is received. Which of the following actions should the technician take to get the PC tooperate?()
第22题:
车上的时钟在车辆停驶时,流过的电流为()。
第23题:
Voltage
Frequency
Power Source Loading (max)
Power Source Loading (typical)
第24题:
不间断电源
电源
蓄电池
适配器