Opposing Currents
If the magnetic field of current induces another electric current, the direction of is opposite that of . If these currents are in two circular conductors and respectively, then the currents and must counter-rotate. The opposing currents will repel each other as a result.
Lenz's law states that the current induced in a circuit due to a change in the magnetic field is so directed as to oppose the change in flux or to exert a mechanical force opposing the motion.
Read more about this topic: Lenz's Law
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