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Chapter 25

Capacitance

المكثفات والسعة
المكثفات والسعة
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 ...
مكثف كروي وأسطواني
مكثف كروي وأسطواني
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells ...
المكثفات في سلسلة ومتوازية
المكثفات في سلسلة ومتوازية
Multiple capacitors connected serve as electrical components in various applications. These multiple capacitors behave as a single equivalent capacitor, ...
سعة مكافئة
سعة مكافئة
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the ...
الطاقة المخزنة في مكثف
الطاقة المخزنة في مكثف
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 ...
الطاقة المخزنة في مكثف: حل المشكلات
الطاقة المخزنة في مكثف: حل المشكلات
In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that ...
مكثف مع عازل
مكثف مع عازل
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates ...
الاستقطاب العازل في مكثف
الاستقطاب العازل في مكثف
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, ...
قانون غاوس في العوازل الكهربائية
قانون غاوس في العوازل الكهربائية
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the ...
الإمكانات بسبب جسم مستقطب
الإمكانات بسبب جسم مستقطب
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the ...
القابلية والسماحية وثابت العزل الكهربائي
القابلية والسماحية وثابت العزل الكهربائي
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 ...
الظروف الحدودية الكهروستاتيكية في العوازل الكهربائية
الظروف الحدودية الكهروستاتيكية في العوازل الكهربائية
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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