1 Answer
Lenz's Law states that the direction of an induced current (or electromotive force, EMF) in a conductor will always oppose the change in magnetic flux that caused it. In simple terms, when a magnetic field around a conductor changes (either by moving the conductor or changing the magnetic field), the induced current will flow in such a way that it creates its own magnetic field to resist or oppose that change.
This law is a consequence of the conservation of energy and is a part of Faraday's Law of Induction. Lenz's Law helps us predict the direction of the induced current. Here's a basic summary:
Lenz's law essentially tells us that nature "fights back" against changes in magnetic fields.
This law is a consequence of the conservation of energy and is a part of Faraday's Law of Induction. Lenz's Law helps us predict the direction of the induced current. Here's a basic summary:
- If the magnetic field through a loop increases, the induced current will create a magnetic field that opposes this increase.
- If the magnetic field through a loop decreases, the induced current will create a magnetic field that opposes this decrease.
Lenz's law essentially tells us that nature "fights back" against changes in magnetic fields.