Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Capacitors and Inductors

In course

EE-106: Electrical engineering science & technology

Ce cours introduit les lois fondamentales de l'électricité et les méthodes permettant d'analyser des circuits électriques linéaires, composés de résistances, condensateurs et inductances. On commencera par le régime continu pour passer ensuite au régime al ...

Description

This lecture covers the principles of capacitors and inductors in electrical circuits, including their behavior in alternating current circuits, energy accumulation, and applications in asynchronous motors. It also discusses the concept of capacitance, energy storage in capacitors, and the properties of supercapacitors. Furthermore, it explores the role of inductors in circuits, the generation of induction fields, and the calculation of inductance. The lecture concludes with a focus on continuous duty behavior and the impact of inductance on electrical systems.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Instructors (3)

Roberto Zoia

Philippe Allenbach

Christian André Clément Lafforgue

Official source

Ontological neighbourhood

Physics

Electromagnetism: Electrical networks

Related concepts (32)

Inductor

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil. When the current flowing through the coil changes, the time-varying magnetic field induces an electromotive force (emf) (voltage) in the conductor, described by Faraday's law of induction. According to Lenz's law, the induced voltage has a polarity (direction) which opposes the change in current that created it.

Inductance

Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it. The flow of electric current creates a magnetic field around the conductor. The field strength depends on the magnitude of the current, and follows any changes in current. From Faraday's law of induction, any change in magnetic field through a circuit induces an electromotive force (EMF) (voltage) in the conductors, a process known as electromagnetic induction.

Capacitor types

Capacitors are manufactured in many styles, forms, dimensions, and from a large variety of materials. They all contain at least two electrical conductors, called plates, separated by an insulating layer (dielectric). Capacitors are widely used as parts of electrical circuits in many common electrical devices. Capacitors, together with resistors and inductors, belong to the group of passive components in electronic equipment.

Electrical engineering

Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use.

Induction motor

An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor. An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable, and economical.

Related lectures (29)

Circuits: LC Oscillator and Filters

Explores LC oscillators, filters, resonance, and energy losses in circuits with inductors and capacitors.

Sinusoidal Circuits: Examples and Impedances MOOC: Electrical engineering I

Covers examples in electrical engineering, impedance properties, and circuit components like resistance and reactance.

Electric Circuits: Analysis and Modeling

Covers the analysis and modeling of electric circuits, focusing on resistors, capacitors, inductors, and circuit simplification techniques.

Index Responses and Unit Jumps MOOC: Electrical engineering II

Explains index responses, unit jumps, and step responses of inductors and capacitors.

Analysis and Resolution of Linear Circuits MOOC: Electrical engineering I