magnetic induction

• Processo pelo qual um campo magnético variável induz uma corrente elétrica em um condutor, ou o surgimento de magnetização em um material quando colocado em um campo magnético.

The process by which a changing magnetic field produces an electric current in a conductor, or the generation of magnetization in a material when placed in a magnetic field.

1. Process of magnetizingC1formal

   The process by which a material becomes magnetized when placed in a magnetic field.

   Processo de magnetização

   • Magnetic induction occurs when an iron bar is placed near a magnet.
   • The strength of magnetic induction depends on the material's permeability.
   • Scientists study magnetic induction to understand how magnets work.

2. Electromagnetic inductionC1formal

   The production of an electromotive force (voltage) across an electrical conductor in a changing magnetic field.

   Indução eletromagnética

   • Michael Faraday discovered electromagnetic induction in 1831.
   • Generators use magnetic induction to convert mechanical energy into electricity.
   • The transformer relies on magnetic induction to change voltage levels.