Which law determines that the flow of induced current will oppose the action causing the voltage?

Lenz's Law is the principle that states the direction of induced current in a circuit will always oppose the change in magnetic flux that produced it. This means that if a magnetic field is increasing in strength, the induced current will flow in a direction to create a magnetic field that opposes this increase. Conversely, if the magnetic field is decreasing, the induced current will flow in a direction that attempts to maintain the original magnetic field.

This law is particularly critical in electromagnetism and has numerous applications, including electric generators and inductors. Understanding Lenz's Law helps in grasping how energy flows and conserves itself in electromagnetic systems, making it a foundational concept in physics and electrical engineering. Other laws related to electricity, such as Ohm's Law and Faraday's Law, address different aspects of electrical behavior, but it is specifically Lenz's Law that addresses the opposition of induced currents to changes in voltage.