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：


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


  • electrostatics - Why is capacitance increased with a dielectric rather . . .
    A dielectric with high permittivity $\varepsilon$ permits (requires) more polarization for a given field magnitude than a low permittivity one More polarization means more charge stored, so the high $\varepsilon$ material must hold more charge for a given field to be measured across it when used as a dielectric in a capacitor
  • condensed matter - Why does the the dielectric constant of a . . .
    The dielectric constant is one of them, as it is the degree of response of a material to an applied electric field In summary, the dielectric constant (and other responses to external perturbations) will in general increase towards the critical temperature both ways, as it is a region of extreme fluctuations
  • Combination of dielectrics in capacitor - Physics Stack Exchange
    For figure 2 in the above diagram, I derived the following equation: $$\\E_ {o}= E_ {1} + E_ {2}$$ Where $\\E_1$ and $\\E_2$ are the net electric fields or dielectric 1 and 2, respectively (i e , $\\
  • Is the polarity of light maintained after reflection from a dielectric . . .
    No, generally the absolute polarization angle isn't maintained Consider for example, light incident at a shallow angle from the air onto the dielectric surface where the light is polarized at 45 $^\circ$ relative the surface This can then be considered a combination of light of equal intensity both perpendicular and parallel to the surface
  • Displacement current in a dielectric - Physics Stack Exchange
    Further, this would imply that the equation for net displacement current in a dielectric medium would be $\epsilon_ok \frac {d\phi_E} {dt}$ However, this result doesn't make intuitive sense to me Could someone please explain if there's a problem with my thinking here?
  • electrostatics - Why does the capacitance of a parallel plate capacitor . . .
    With a dielectric present due to the induced charge (called polarisation) the electric field within the dielectric is reduced but unlike a conductor does not become zero but a similar analysis will show that the charge on the plates of the capacitor must increase to keep the potential difference between the plates constant
  • electricity - Arc discharge and dielectric breakdown - are these the . . .
    Arc discharge and dielectric breakdown - are these the same phenomena? With the subtle distinction, arc discharge generally occurs in the gaseous state and dielectric breakdown in condensed matter
  • electrostatics - Effect on a capacitor due to a dielectric - Physics . . .
    Therefore, when the dielectric is inserted, it will do additional work by increasing the charge until the potential difference is reached However, when the capacitor is connected to a battery source, the potential difference remains the same, even when a dielectric is inserted inside the capacitors What is the reason for this?
  • electric fields - What happens when a dielectric is inserted in a . . .
    However, when a dielectric is inserted, it reduces the field since the molecules of the dielectric align themselves in such a way that the moment is opposite to the external electric field, which is also supported by: K = E external E reduced where K is the dielectric constant
  • electromagnetism - Difference between dielectric constant and . . .
    The dielectric constant is a measure of the spring constant A material with a large dielectric constant is made of "stretchy" atoms or molecules Given a parallel plate capacitor, the capacitance depends on the distance between the plates Inserting a dielectric effectively adds plates, reducing the separation





中文字典-英文字典  2005-2009