Fr.: induction électromagnétique
The production of an → electromotive force in a circuit caused by a variation in the magnetic flux through the circuit. If this variation is produced by a change in the current flowing in the circuit itself, it is called → self-induction. If due to the variation in a current in some other circuit, it is called mutual induction. See also → Faraday's law of induction.
Fr.: induction électrostatique
The production of stationary electric charges on an uncharged object as a result of a charged body being brought near it without touching it. A positive charge will induce a negative charge, and vice versa.
Faraday's law of induction
qânun-e darhazeš-e Faraday
Fr.: loi d'induction de Faraday
The induced → electromotive force in a circuit is equal in magnitude and opposite in sign to the rate of change of the → magnetic flux through the surface bounded by the circuit. Mathematically, it is expressed as: ∇ x E = -∂B/∂t, which is one of the four → Maxwell's equations.
1) General: The act of inducing, bringing about, or causing.
Verbal noun of → induce.
Fr.: bobine d'induction
A device for producing high-voltage pulses by means of → electromagnetic induction. It consists of a primary coil of a few turns of wire, wound on an iron core, and insulated from a secondary coil of many turns which surrounds it coaxially. The current in the primary, which is interrupted periodically, sets up a magnetic field, first big, then zero. This changing field induces a large voltage in the secondary.
Fr.: équation d'induction
In magnetohydrodynamics, an equation that describes the transport of plasma and magnetic
field lines over time:
Fr.: champ d'induction
A component of an electromagnetic field which is the region close to the source (an antenna) where steady-state magnetic and electrostatic forces can be detected. → radiation field.
line of induction
Fr.: ligne d'induction
Same as → line of force in a magnetic field.
Fr.: induction magnétique
1) Same as → magnetic flux density.
darhâzeš-e anjâl, ~ anjâleš
Fr.: induction à saturation
The maximum intrinsic magnetic induction possible in a material.
The generation of a voltage in a circuit due to self-inductance, the polarity of which tends to oppose the changing current in the circuit.