- #1
skwz
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Ok, this may borderline a homework problem, but I'm not quite grasping the concept of induced electric fields. So let's say that they exist a wire loop and solenoid. The switch in the circuit containing the solenoid is originally open and then closed. At this instant, we induce an emf in the loop since we are changing magnetic flux (at this instant). Now since the loop isn't moving, how do the charge carriers move in the loop? Is it by the induced electric field from the change in magnetic flux and we now take into account of the Lorentz force. And by doing this are we saying that the magnetic component of the Lorentz force is zero? Therefore it is the Lorentz force (the electric component) that acts on the charge carriers and causes the current and not a magnetic force exerted by the solenoid (sorry, it's the phrasing my homework uses)?
Since my thoughts tend to be all over the place, here is a summary:
1.) Stationary Loop in a changing magnetic field
2.) We induce an emf by Faraday's Law (changing magnetic flux)
3.) This induced emf is caused by an induced electric field
4.) There is no magnetic force acting on the charge carriers since there is no relative motion of the loop
5.) Taking into account the Lorentz Force, the magnetic component is zero and the force that causes motion of the charge carriers is due to the electric field
8.) Thus the induced current is caused by the induced electric field?
Thanks in advance!
Since my thoughts tend to be all over the place, here is a summary:
1.) Stationary Loop in a changing magnetic field
2.) We induce an emf by Faraday's Law (changing magnetic flux)
3.) This induced emf is caused by an induced electric field
4.) There is no magnetic force acting on the charge carriers since there is no relative motion of the loop
5.) Taking into account the Lorentz Force, the magnetic component is zero and the force that causes motion of the charge carriers is due to the electric field
8.) Thus the induced current is caused by the induced electric field?
Thanks in advance!