英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

voltage    音标拼音: [v'oltədʒ] [v'oltɪdʒ]
n. 电压,伏特数

电压,伏特数

voltage
电压调整率

voltage
电压

voltage
n 1: the rate at which energy is drawn from a source that
produces a flow of electricity in a circuit; expressed in
volts [synonym: {voltage}, {electromotive force}, {emf}]
2: the difference in electrical charge between two points in a
circuit expressed in volts [synonym: {electric potential},
{potential}, {potential difference}, {potential drop},
{voltage}]

Voltage \Vol"tage\, n. (Elec.)
Electric potential or potential difference, expressed in
volts.
[1913 Webster]

(Or "potential difference", "electro-motive
force" (EMF)) A quantity measured as a signed difference
between two points in an electrical circuit which, when
divided by the {resistance} in {Ohms} between those points,
gives the current flowing between those points in {Amperes},
according to {Ohm's Law}. Voltage is expressed as a signed
number of Volts (V). The voltage gradient in Volts per metre
is proportional to the force on a charge.

Voltages are often given relative to "earth" or "ground" which
is taken to be at zero Volts. A circuit's earth may or may
not be electrically connected to the actual earth.

The voltage between two points is also given by the charge
present between those points in {Coulombs} divided by the
{capacitance} in {Farads}. The capacitance in turn depends on
the {dielectric constant} of the insulators present.

Yet another law gives the voltage across a piece of circuit as
its {inductance} in {Henries} multiplied by the rate of change
of current flow through it in Amperes per second.

A simple analogy likens voltage to the pressure of water in a
pipe. Current is likened to the amount of water (charge)
flowing per unit time.

(1995-12-04)


请选择你想看的字典辞典：
单词字典翻译
voltage查看　voltage　在百度字典中的解释百度英翻中〔查看〕
voltage查看　voltage　在Google字典中的解释Google英翻中〔查看〕
voltage查看　voltage　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • What exactly is voltage? - Electrical Engineering Stack Exchange
    The total voltage you get from one out and back, even with a high temperature difference is pretty small By putting many of these out and back combinations together, you can get a useful voltage A single out and back is called a thermocouple, and can be used to sense temperature Many together is a thermocouple generator Yes, those actually
  • What, exactly, is voltage? - Electrical Engineering Stack Exchange
    And also if voltage is like gravitational potential energy, how does more voltage mean more current? And here our nice analogy breaks down In this sense voltage is more like pressure in a water pipe
  • Why does the voltage drop across a given resistor change when I add . . .
    Why exactly does the voltage drop in R1 change when I add another resistor to the circuit? I understand that it has to change according to Ohm's Law (V = IR), but how does the amount of charge moving
  • Is it a problem to use a capacitor at or near its rated DC voltage?
    Are there important points to consider in typical or special applications when capacitors operate with applied voltage close to their rated DC voltage? Such as: 15 V on a 16 V-rated capacitor, 24
  • How much voltage current is dangerous? - Electrical Engineering Stack . . .
    Likewise, if the current and voltage are below a certain level, a person can--given enough time--safely absorb an arbitrarily large amount of electrical energy Further, if voltage is sufficiently low, the amount of current that can flow as a consequence of such voltage will be too low to cause harm
  • power electronics - Inductor - Voltage rating and Saturation . . .
    The rated voltage (75 volts) is specified in the data sheet for all inductance values in that product range hence, it seems likely that going to 100 volts exceed the maximum permissible voltage rating However, this maximum is not stated so, you should contact the supplier rather than base any judgements using faith alone What will happen?
  • 24V truck battery - voltage when the engine is running?
    A float charging voltage for 12V lead acid battery is 13 8V (2 25V to 2 3V per cell) In a 24 system you have to multiply by two, which gives 27 6V However the battery can be charged also with higher voltages for fast charge, which is not implemented in automotive alternator, so it should output the float charging voltage
  • Voltage across Vce in a common emitter BJT
    In this case, the voltage across the current source I depends only on R With other words: The voltage across a constant current source depends on the external network only Therefore, the voltage Vce depends on IcRc and Vcc only When there is an emitter resistor Re we have; Vce=Vcc-IcRc-IeRe
  • power - How is Line and Phase Voltage the same for a Delta connected . . .
    The phase voltage is the voltage across the transformer winding or load element associated with a phase The diagram posted in the question shows three coils that can be assumed to be transformer windings The RY coil is connected to lines R and Y therefore the voltage across that coil is the R-to-Y line voltage
  • LTspice showing wrong voltage - Electrical Engineering Stack Exchange
    The actual forward voltage is a complicated combination of a bunch of factors, and N is rarely outside the range (1, 2), even for diodes with forward voltages much less than 1 or much greater than 2





中文字典-英文字典  2005-2009