When the current flowing through an inductor changes, creating a time-varying magnetic field inside the coil, a voltage is induced, according to Faraday's law of electromagnetic induction, which by Lenz's law opposes the change in current that created it.

When there is a sinusoidal alternating current ( AC ) through an inductor, a sinusoidal voltage is induced.

Several other experiments followed, with André-Marie Ampère, who in 1820 discovered that the magnetic field circulating in a closed-path was related to the current flowing through the perimeter of the path ; Carl Friedrich Gauss ; Jean-Baptiste Biot and Félix Savart, both of which in 1820 came up with the Biot-Savart Law giving an equation for the magnetic field from a current-carrying wire ; Michael Faraday, who in 1831 found that a time-varying magnetic flux through a loop of wire induced a voltage, and others finding further links between magnetism and electricity.

As the field collapses there is a voltage induced ( as described by Faraday's Law ) across the primary coil.

Voltage across the primary coil results in a proportional voltage being induced across the secondary winding of the coil.

In an ideal transformer, the induced voltage in the secondary winding ( V < sub > s </ sub >) is in proportion to the primary voltage ( V < sub > p </ sub >) and is given by the ratio of the number of turns in the secondary ( N < sub > s </ sub >) to the number of turns in the primary ( N < sub > p </ sub >) as follows:

The voltage induced across the secondary coil may be calculated from Faraday's law of induction, which states that:

Since the receiver responds only to the difference between the wires, it is not influenced by the induced noise voltage.

As common mode interference will not cause current to be induced in the primary, no signal from this source will be seen in the secondary, while differential signals on the primary will cause current in the primary and so cause induced voltage in the secondary.

In telecommunication, a disturbance voltage is an unwanted voltage induced in a system by natural or man-made sources.

It is the peak electric field of the EMP that determines the peak voltage induced in equipment and other electrical conductors on the ground, and most of the damage is determined by induced voltages.

It is advisable to provide bare conductor as ground connection, particularly in electronic circuits, because the insulated cable / conductor can work as secondary to lightening impulses and will make the earth float through induced secondary voltage.

This induced voltage may be sometimes high enough to damage the equipments.

As the coil moves through the magnetic field, a voltage is induced across the coil.

In the case of a closed path in the presence of a varying magnetic field, the integral of the electric field around a closed loop may be nonzero ; one common application of the concept of emf, known as " induced emf " is the voltage induced in a such a loop.

The voltage / current induced by the geomagnetic storm could have led to diminishing of the signal, when subtracted from the battery polarity, or to overly strong and spurious signals when added to it ; some operators in such cases even learned to disconnect the battery and rely on the induced current as their power source.

where v < sub > m </ sub > denotes the voltage induced in circuit m. This agrees with the definition of inductance above if the coefficients L < sub > m, n </ sub > are identified with the coefficients of inductance.

: is the mutual inductance, and the subscript specifies the relationship of the voltage induced in coil 2 due to the current in coil 1.

he is prone to semi-catatonic trances induced by the playing of the vioiln ; ;

( C ) if Af is the operator induced on Af by T, then the minimal polynomial for Af is Af.

If Af is the operator induced on Af by T, then evidently Af, because by definition Af is 0 on the subspace Af.

`` Culturally induced social cohesion resulting from common norms and values internalized by members of the group '' is operative in the boundary maintenance of the group as well as in the process of socialization.

Thus, from the human body, the usual form assigned to the Deity, forasmuch as it is written that God created man in his own image, issue the two supporters, Nous and Logos, symbols of the inner sense and the quickening understanding, as typified by the serpents, for the same reason that had induced the old Greeks to assign this reptile for an attribute to Pallas.

Apoptosis caused by CDV is typically induced via the extrinsic pathway which activates caspases that disrupt cellular function and eventually leads to the cells death.

Spin is induced by gun barrels having rifling which engages a soft metal band around the projectile, called a " driving band " ( UK ) or " rotating band " ( U. S .).

In case of a-Si: H the missing long-range order between silicon atoms is partly induced by the presence by hydrogen in the percent range.

There is evidence that with abstinence, there is a reversal of at least some of the alcohol induced central nervous system damage.

It is believed that most of the stable beryllium in the universe was originally created in the interstellar medium when cosmic rays induced fission in heavier elements found in interstellar gas and dust.

This lean is induced by a method known as countersteering, which can be performed by the rider turning the handlebars directly with the hands or indirectly by leaning the bicycle.

The spaceX * of all linear maps into K ( which is called the algebraic dual space to distinguish it from X ′) also induces a weak topology which is finer than that induced by the continuous dual since X ′ ⊆ X *.

Because Broadway is a true north – south route that parallels the Hudson River and preceded the grid that the Commissioners ' Plan of 1811 imposed on the island, Broadway diagonally crosses Manhattan, its intersections with avenues marked by " squares " ( some merely triangular slivers of open space ) have induced some interesting architecture, such as the Flatiron Building.

Equipped with the topology of pointwise convergence on A ( i. e., the topology induced by the weak -* topology of A < sup >∗</ sup >), the character space, Δ ( A ), is a Hausdorff compact space.

* van der Waals forces: This is due to interaction between two dipoles that are either permanent or induced.

Their reliability as indicators of consciousness is disputed, however, due to numerous studies showing that alert human subjects can be induced to behave purposefully in a variety of ways in spite of reporting a complete lack of awareness.

A subset K of a topological space X is called compact if it is compact in the induced topology.

For example, the Diels-Alder reactions can be assisted by heat whereas the cycloaddition is selectively induced by light.

For instance, a professor of formal logic called Chin Yueh-lin – who was then regarded as China ’ s leading authority on his subject – was induced to write: “ The new philosophy Marxism-Leninism, being scientific, is the supreme truth ”.

where J denotes the Jacobian matrix of partial derivatives of ƒ and is the induced norm on the matrix.

Further analysis of this process, known as electromagnetic induction, enabled him to state the principle, now known as Faraday's law of induction, that the potential difference induced in a closed circuit is proportional to the rate of change of magnetic flux through the loop.

When most materials are polarized, the polarization induced, P, is almost exactly proportional to the applied external electric field E ; so the polarization is a linear function.

* 1895 – Pierre Curie discovers that induced magnetization is proportional to magnetic field strength

This process repeats itself as long as the liquid circulates the chamber, resulting in a self induced oscillation that is directly proportional to the velocity of the liquid and consequently the volume of substance flowing through the meter.

Since the voltage that is induced in the coil is proportional to the rate of change ( derivative ) of current in the straight conductor, the output of the Rogowski coil is usually connected to an electrical ( or electronic ) integrator circuit to provide an output signal that is proportional to the current.

The voltage induced in the secondary, < font color =" red "> v < sub > 2 </ sub ></ font > shown in < font color =" red "> red </ font >, is proportional to the rate of change ( slope ) of the primary current.

The aft-leaning component of this change in velocity is proportional to the induced drag.

Unlike parasitic drag on an object ( which is proportional to the square of the airspeed ), for a given lift, induced drag on an airfoil is inversely proportional to the square of the airspeed.

Consequently in straight and level flight, the induced drag is inversely proportional to the square of the airspeed.

Since induced drag is inversely proportional to the square of the airspeed whereas parasitic drag is proportional to the square of the airspeed, the combined overall drag curve shows a minimum at some airspeed-the minimum drag speed ( V < sub > MD </ sub >).

The anholonomy induced by a complete circuit of latitude is proportional to the solid angle subtended by that circle of latitude.

The Kerr effect is distinct from the Pockels effect in that the induced index change is directly proportional to the square of the electric field instead of varying linearly with it.

An alternating current drives the primary and causes a voltage to be induced in each secondary proportional to the length of the core linking to the secondary.

When there is a sinusoidal electric field acting on a material, there is an induced dipole moment per unit volume which is proportional to the electric field-with a proportionality constant that depends on the frequency.

As the sound wave causes the ribbon to move, the induced voltage in the ribbon is proportional to the particle velocity in the sound wave.

Since induced current is directly proportional to rate of change of flux linkage and assuming the coil is removed from the magnetic field very quickly, the maximum current measured by the ammeter is proportional to the magnetic field.