Lenz’s law is an important concept in electromagnetism. It states that when a voltage is created by a change in magnetic flux, the induced voltage must create a current whose magnetic field is in opposition to the change which produces it.

Sample Answer: The magnetic flux density through a coil is directly proportional to current. When the current increases the magnetic flux density will increase.

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Inducing current on a coil by moving the coil in a magnetic field 2. Inducing current on a coil by by changing the magnetic field across it.

The Lenz’s law of electromagnetic induction is based on the conservation of energy not on the conservation of momentum. So, option D is not correct.

While Faraday’s law tells us the magnitude of the EMF produced, Lenz’s law tells us the direction that current will flow. It states that the direction is always such that it will oppose the change in flux which produced it.

To establish the flow of current, the external source of the electromagnetic field has to do some work for overcoming this opposition. The Lenz’s law is used in electromagnetic brakes and induction cooktops. It is also applied to electric generators, AC generators.

According to Maxwell’s corkscrew in the direction of current, then the direction in which we turn its handle is the direction of magnetic field. This rule is used to determine the direction of magnetic field around a straight-current carrying conductor. Answer verified by Toppr.

The emf induced in a coil due to change of flux linked with it (change of flux is by the increase or decrease in current) is called statically induced emf. Transformer is an example of statically induced emf. Here the windings are stationary, magnetic field is moving around the conductor and produces the emf.