# Explaining Lenz's Law without conservation of energy

I was often told by my professor, using the following example, to demonstrate the relationship of conservation of energy and Lenz's Law.

If you push a conductor into a constant magnetic field. By Lenz's Law, voltage will be induced to oppose the "cause" which then resists the conductor from moving quicker which would be a violation of conservation of energy. In other words, if you push the rod very slightly, and the induced force turns out to push it even further, you generate infinite energy which then contradicts the conservation of energy law.

However, I wasn't happy enough by this answer, even though the fact is that you won't get infinite energy. I was thinking, whether it is something to do with the things happening on the atomic scale. Considering a more trivial example, a magnet moving towards a current loop,

so why would it produce a opposite pole to resist the change?

Is it something to do with the cutting flux of the magenetic field?

Why must a field be created to cancel the effect?

Why can't nothing happen?

Or is it just a matter of fact in nature?

I am finding this hard to understand how this really works. Is it a virtual particle?

Please explain the above phenomena without relating it to energy conservation law.

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In the image posted by you (motional EMF), you can consider the free electrons in the rod moving in the direction of $v$ and therefore the magnetic force acting on them due to their motion is sideways in a direction that would produce a current in the loop as if it tries to oppose the increase in the field within the loop. Work it out with Fleming's left hand rule to get the direction of force and verify. –  Satwik Pasani Sep 19 at 13:18