What is EMI?
| Electromagnetic Interference |
|
Every electric current that flows produces a magnetic field. If the current increases or decreases, the magnetic field grows or shrinks. If this moving magnetic field passes through a wire, a voltage signal will be induced in the wire which may interfere with the correct operation of the circuit of which the wire forms a part. Strong magnetic fields occur where cables carry heavy current, so special attention must be given, for example, to the design of the computers power supply. If electric currents are changing rapidly, radio waves can be generated which may cause interference with other equipment. |
Beginner's Help
BUG Club Home
