Dipole - Wikipedia
网页In physics, a dipole (from Ancient Greek δίς (dís) 'twice' and πόλος (pólos) 'axis') [1][2][3] is an electromagnetic phenomenon which occurs in two ways: An electric dipole deals with the separation of the positive and negative electric charges found in …
Electric dipole moment - Wikipedia
网页LTI. The electric dipole moment is a measure of the separation of positive and negative electrical charges within a system: that is, a measure of the system's overall polarity. The SI unit for electric dipole moment is the coulomb - meter (C⋅m).
偶极 - 百度百科
网页偶极，外文名称是dipole，表示分子的极性。. 可以分为三类：固有偶极、 诱导偶极 、 瞬间偶极。. 固有偶极： 极性分子 中由于组成元素不同，其吸引电子的能力各有差异（元素周期律），这就使得分子中有电子偏移的现象，这样就产生了极性，并且偶极持续 ...
DIPOLE中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页dipole noun [C] (FOR RADIO) (also dipole antenna) a simple type of radio aerial (= a structure that receives or sends out radio signals) that is shaped like the letter T. 偶极子 …
Magnetic dipole - Wikipedia
网页In electromagnetism, a magnetic dipole is the limit of either a closed loop of electric current or a pair of poles as the size of the source is reduced to zero while keeping the magnetic moment constant. It is a magnetic analogue of the electric dipole, but the analogy is …
1.4: Dipoles - Physics LibreTexts
网页A dipole is a distance r r from an infinitely-long line of negative charge of density λ λ. The dipole moment p→ p → is parallel to the line of charge. Find the magnitude of the torque on the dipole in terms of r r, p→ p →, and λ λ. The dipole moment is now pointing directly at the line of charge (perpendicular to it).
Learn What a Dipole Is in Chemistry and Physics - ThoughtCo
网页2020年1月13日 · All polar molecules are dipoles. Even a linear nonpolar molecule like carbon dioxide (CO 2 ) contains dipoles. There is a charge distribution across the molecule in which charge is separated between the oxygen and carbon atoms.
11.6: Electric Dipole - Physics LibreTexts
网页2024年4月18日 · To that end, we define a vector quantity known as an electric dipole moment, p p →, as shown in the figure below. Figure 11.6.2: Electric Dipole Moment. The magnitude of the dipole moment is defined as the product of the absolute value of one of the two charges, multiplied by the distance separating the two charges:
Electric dipole | Polarity, Charge Distribution & Interaction
网页2024年9月4日 · Electric dipole, pair of equal and opposite electric charges the centres of which are not coincident. An atom in which the centre of the negative cloud of electrons has been shifted slightly away from the nucleus by an external electric field constitutes an induced electric dipole.
5.8: Electric Dipoles - Physics LibreTexts
网页Figure 5.8.2: A dipole is induced in a neutral atom by an external electric field. The induced dipole moment is aligned with the external field. An important fact here is that, just as for a rotated polar molecule, the result is that the dipole moment ends up aligned parallel to the external electric field.
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