What is the formula of Lenz's law?

The formula of Lenz's law is: increase but decrease unchanged, come and refuse to stay, increase, decrease and expand. In Lenz's law, the magnetic field of induced current always hinders the change of magnetic flux that causes induced current, which can be simply described by the formula "increase or decrease the same, refuse to stay, increase or decrease and expand".

One direction, two changes, three obstacles, and four ones are grasped, which are mainly manifested in one, two, and three fours, that is, one law, two expressions, three expressions, three angles of understanding Lenz's law, and the application of Lenz's law.

Lenz's law: the induced current has such a direction that the magnetic field of the induced current always hinders the change of the magnetic flux that causes the induced current.

Lenz's law can also be expressed as: the role of induced current is always the reason to resist induced current.

Lenz's law is a law of electromagnetism, which can be used to judge the direction of electromotive force produced by electromagnetic induction. It was discovered by Russian physicist Heinrich Lengtz in 1834.

1834, on the basis of summarizing a large number of experimental facts, the Russian physicist Heinrich Lengz summed up a law to judge the direction of induced current, which is called Lenz's law. Simply put, it is the law of "come and refuse", which is the main content of Lenz's law.

Lenz's law is the concrete embodiment of the law of conservation of energy in electromagnetic induction.