- #1
cragar
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When we talk about Faraday's law, we need a change in magnetic flux to create a voltage.
So let's say I have a B field that exists in a square region and then a square loop that is a conductor and I push it into the B field. So as I originally push the square loop into the B field I have a change in magnetic flux, so there will be a voltage and the free electrons in the conductor will start to move. Or I could view it as the free electrons are approaching the B field with a speed v and they will experience a Lorentz force and this will start a current to flow in the loop. But now let's say the loop it completely in the B field, so the magnetic flux is constant. But I still would have a current in the loop because of the Lorentz pushing on the electrons. And I still would have a voltage because I have current in the loop. Am I thinking about this correctly?
So let's say I have a B field that exists in a square region and then a square loop that is a conductor and I push it into the B field. So as I originally push the square loop into the B field I have a change in magnetic flux, so there will be a voltage and the free electrons in the conductor will start to move. Or I could view it as the free electrons are approaching the B field with a speed v and they will experience a Lorentz force and this will start a current to flow in the loop. But now let's say the loop it completely in the B field, so the magnetic flux is constant. But I still would have a current in the loop because of the Lorentz pushing on the electrons. And I still would have a voltage because I have current in the loop. Am I thinking about this correctly?