In this lesson, we shall learn the basics of a capacitor, and understand the voltage - current relationship of a capacitor.
A capacitor is a passive element that is designed to store energy in its electric field. A capacitor is made up of two metallic plates separated by a dielectric material (insulator). The two metallic plates are spaced by a distance d.
The physical dimensions influence the capacitance of the capacitor.
The capacitance C = εA / d, where
ε is the permittivity of the dielectric material
A is the surface area of each metallic plate, and
d is the distance between the two plates
To obtain the current voltage equation,
We start by considering the equation q = Cv..........(1)
The capacitance is also said to be equal to the ratio of the charge on one plate of the capacitor to the voltage difference between the two plates.
The video describes the various steps and the formulas we are going to consider to solve questions in the subsequent lessons.
00:00 - Voltage - current relationship of a linear capacitor
05:10 - Instantaneous power delivered to a capacitor
06:10 - Energy stored in a capacitor
Playlists on various Courses
1. Applied Electricity
• APPLIED ELECTRICITY
2. Linear Algebra / Math 151
• LINEAR ALGEBRA
3. Basic Mechanics
• BASIC MECHANICS / STATICS
4. Calculus with Analysis / Calculus 1 / Math 152
• CALCULUS WITH ANALYSIS...
5. Differential Equations / Math 251
• DIFFERENTIAL EQUATIONS
6. Electric Circuit Theory / Circuit Design
• ELECTRIC CIRCUIT THEOR...
7. Calculus with Several Variables
• CALCULUS WITH SEVERAL ...
8. Numerical Analysis
• MATH 351 / NUMERICAL A...
Make sure to watch till the end.
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