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Chapter 25

Capacitance

电容器和电容
电容器和电容
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space ...
球形和圆柱形电容器
球形和圆柱形电容器
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells ...
串联和并联电容器
串联和并联电容器
Multiple capacitors connected serve as electrical components in various applications. These multiple capacitors behave as a single equivalent capacitor, ...
等效电容
等效电容
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the ...
电容器中存储的能量
电容器中存储的能量
When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential ...
电容器中存储的能量:问题解决
电容器中存储的能量:问题解决
In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that ...
带电介质的电容器
带电介质的电容器
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates ...
电容器中的介电极化
电容器中的介电极化
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, ...
电介质中的高斯定律
电介质中的高斯定律
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the ...
极化物体引起的电位
极化物体引起的电位
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the ...
磁化率、介电常数和介电常数
磁化率、介电常数和介电常数
When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the ...
电介质中的静电边界条件
电介质中的静电边界条件
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the ...
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