网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
感应电动势包括感生电动势和动生电动势，下列说法哪个是正确的？ Induction Electromotive Force includes Induced Electromotive Force and Motional Electromotive Force, which of the following statements is true？
A．由于磁场变而产生的电动势不是感生电动势； The electromotive force due to the change of magnetic field is not Induced Electromotive Force;
B．由于线圈（导体）动产生的电动势是动生电动势； The electromotive force produced by the coil (conductor) is Motional Electromotive Force.
C．由于磁场变而产生的电动势是动生电动势； The electromotive force due to the change of magnetic field is Motional Electromotive Force.
D．由于线圈（导体）动产生的电动势不是动生电动势； The electromotive force due to coil (conductor) mot
参考答案和解析
正确
更多 “感应电动势包括感生电动势和动生电动势，下列说法哪个是正确的？ Induction Electromotive Force includes Induced Electromotive Force and Motional Electromotive Force, which of the following statements is true？A．由于磁场变而产生的电动势不是感生电动势； The electromotive force due to the change of magnetic field is not Induced Electromotive Force;B．由于线圈（导体）动产生的电动势是动生电动势； The electromotive force produced by the coil (conductor) is Motional Electromotive Force.C．由于磁场变而产生的电动势是动生电动势； The electromotive force due to the change of magnetic field is Motional Electromotive Force.D．由于线圈（导体）动产生的电动势不是动生电动势； The electromotive force due to coil (conductor) mot” 相关考题
考题
In Trial 9, the electrical force exerted by Sphere Y on Sphere X and the electrical force exerted by Sphere X on Sphere Y were exerted in which direction(s)?A.east； eastB.east； westC.west； westD.west； east
考题
View the following SQL statements:You want to back out transaction T2. Which option would you use?()
A. It is possible, but transaction T3 also backs out.B. It is possible with the NOCASCADE_FORCE option.C. It is possible with the NONCONFLICT_ONLY option.D. It is not possible because it has conflicts with transaction T3.
考题
High-speed rotation in a centrifugal purifier can produce a force ______the force of gravity.A.many thousand times larger thanB.the same asC.many thousand times smaller thanD.which has nothing to do with
考题
选择适当的用语补充对话。（） ——What did you feel during the massage？ ——I am feel comfortable____________.A、The force is too heavyB、The force is too bigC、The force is too lightD、The force is too suitable
考题
对于单相变压器，如果忽略初、次级线圈直流电阻和漏磁通时，线圈中感生电压与感生电动势之间存在的关系是（）。A、感生电压等于感生电动势B、感生电动势大于感生电压C、感生电压与感生电动势相位相同D、感生电压与感生电动势相位相反
考题
对于单相变压器，如果忽略初、次级线圈的直流电阻和漏磁通时，线圈中感生电压与感生电动势之间存在的关系是（）。A、感生电压等于感生电动势B、感生电动势大于感生电压C、感生电压与感生电动势相位相同D、感生电压与感生电动势相位相反
考题
关于DIRECTED RETRY和FORCE DIRECTEDRETRY，哪种说法是正确的（） A、DIRECTED RETRY只能在TCH之间进行切换B、FORCE DIRECTED RETRY不需考虑邻小区电平C、DIRECTED RETRY在某些情况下能够缩短手机建立呼叫的时间D、FORCE DIRECTED RETRY不能在微蜂窝中进行
考题
During a boot, which of the following procedures is most likely to present a menu that prompts the user to copy a dump?（）A、 Set the dump device to /dev/hd6. B、 Run sysdumpdev to set the force copy flag for dump to true. C、 Run sysdumpdev to set the force copy flag for dump to false. D、 Increase space in the /tmp directory.
考题
An administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following n?command failed toAn administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following ?n?command failed to create the link.ln/db/v9.7/install/config /etc/db_conf. Which option should be used when re-running the command to resolve the problem?（）A、-s flag to create a soft linkB、-n flag to force create a hard linkC、-N flag to force create a hard linkD、-S flag to force create a soft link
考题
单选题The moment of a force is a measure of the（）.A
turning effect of the force about a pointB
instantaneous value of the forceC
stability characteristics of the vesselD
center of gravity location
考题
单选题Which expression has the different meaning from entry into force ? “entry into force” means is（）.A
coming into effectB
moving to full effectC
being based on forceD
coming into force
考题
单选题During a boot, which of the following procedures is most likely to present a menu that prompts the user to copy a dump?（）A
Set the dump device to /dev/hd6. B
Run sysdumpdev to set the force copy flag for dump to true. C
Run sysdumpdev to set the force copy flag for dump to false. D
Increase space in the /tmp directory.
考题
单选题The force exerted by a propeller which tends to throw the stern right or left is called（）.A
slipB
sidewise forceC
rotational forceD
thrust
考题
单选题Which of the following statements about pump operations is NOT a correct statement?（）A
In order for a fluid to be pumped, a fluid must be made to flowB
A substance must be cold in order for it to be pumpedC
The kinetic energy imparted by the pump can be used to force a liquid through a hydraulic systemD
A pump must receive its energy from an external source
考题
单选题In a simple mechanical governor, the （）A
centrifugal force rotates the ball-headB
flyweight centrifugal force is balanced by spring forceC
flyweight centrifugal force is balanced by hydraulic pressureD
speeder spring alone actuates the fuel control rod
考题
单选题An administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following n?command failed toAn administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following ?n?command failed to create the link.ln/db/v9.7/install/config /etc/db_conf. Which option should be used when re-running the command to resolve the problem?（）A
-s flag to create a soft linkB
-n flag to force create a hard linkC
-N flag to force create a hard linkD
-S flag to force create a soft link
考题
单选题Which of the following statements best summarises the opening sentence?A
There is a connection between behavior and desired objectives.B
We can assume that behavior is dependent upon motivation.C
Satisfactory behavior is a product of motivation.D
The need to achieve is man’s strongest driving force.
考题
单选题By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?（）A
HydraulicB
MechanicalC
PneumaticD
Electrical
考题
单选题选择适当的用语补充对话。（） ——What did you feel during the massage？ ——I am feel comfortable____________.A
The force is too heavyB
The force is too bigC
The force is too lightD
The force is too suitable
热门标签
最新试卷