Browse Definitions :
Definition

electromagnetic induction

Electromagnetic induction is the creation of an electro-motive force (EMF) by way of a moving magnetic field around an electric conductor and, conversely, the creation of current by moving an electric conductor through a static magnetic field. Electromagnetic interference (EMI) is also known as electric current and electromagnetic induction and may also be called magnetic induction, as the principle remains the same whether the process is carried out through electromagnet or static magnet.

Electromagnetic induction was discovered by Michael Faraday in 1831 and, independently and almost simultaneously, by Joseph Henry in 1832. Faraday discovered electromagnetic induction and demonstrated it with a copper coil around a Toroidal piece of iron, a galvanometer (a gauge-based device to show current) and a magnet. When the magnet was moved towards the coil, an EMF is created moving the gauge on the galvanometer. If it is the north end of the magnet that is drawn closer, current flows one way; if the south is drawn closer, then current flows in the opposite direction.

The discovery of electromagnetic induction was a fundamental principle in understanding and harnessing electricity. James Clerk Maxwell formulated the mathematical description as Faraday’s Law of induction, later known as the Maxwell-Faraday Equation.

The principle of electromagnetic induction is used in electronic components such as inductors and transformers. Electromagnetic induction is the basis of all types of electric generators and motors used to generate electricity from motion and motion from electricity.

This was last updated in August 2018

Continue Reading About electromagnetic induction

Networking
  • SD-WAN security

    SD-WAN security refers to the practices, protocols and technologies protecting data and resources transmitted across ...

  • net neutrality

    Net neutrality is the concept of an open, equal internet for everyone, regardless of content consumed or the device, application ...

  • network scanning

    Network scanning is a procedure for identifying active devices on a network by employing a feature or features in the network ...

Security
  • cloud penetration testing

    Cloud penetration testing is a tactic an organization uses to assess its cloud security effectiveness by attempting to evade its ...

  • cloud workload protection platform (CWPP)

    A cloud workload protection platform (CWPP) is a security tool designed to protect workloads that run on premises, in the cloud ...

  • out-of-band authentication

    Out-of-band authentication is a type of two-factor authentication (2FA) that requires a secondary verification method through a ...

CIO
  • strategic management

    Strategic management is the ongoing planning, monitoring, analysis and assessment of all necessities an organization needs to ...

  • IT budget

    IT budget is the amount of money spent on an organization's information technology systems and services. It includes compensation...

  • project scope

    Project scope is the part of project planning that involves determining and documenting a list of specific project goals, ...

HRSoftware
  • director of employee engagement

    Director of employee engagement is one of the job titles for a human resources (HR) manager who is responsible for an ...

  • digital HR

    Digital HR is the digital transformation of HR services and processes through the use of social, mobile, analytics and cloud (...

  • employee onboarding and offboarding

    Employee onboarding involves all the steps needed to get a new employee successfully deployed and productive, while offboarding ...

Customer Experience
  • chatbot

    A chatbot is a software or computer program that simulates human conversation or "chatter" through text or voice interactions.

  • martech (marketing technology)

    Martech (marketing technology) refers to the integration of software tools, platforms, and applications designed to streamline ...

  • transactional marketing

    Transactional marketing is a business strategy that focuses on single, point-of-sale transactions.

Close