physics question

<p>If magnet stops moving through a coil, is there still a current? I'm guessing it would be a constant current because I know a"changing magnetic field" produces a "changing electric field" so does a "constant magnetic field " cause a "constant electric field"</p>

<p>Epsilon=vBL, induced current, this creates a PD, the current tries to oppose the magnetic force, conservation of energy law, also lenz’s law, epsilon = -flux/delta time</p>

<p>What you are asking then is if there is a magnetic force still present if there is no change in magnetic flux. The answer is yes.</p>

<p>The current would change to oppose the change in magnetic flux, so you would need to move the magnetic for their to be a different p.d.</p>

<p>Magnetic fields always cause charged particles to accelerate.</p>

<p>Edit: I said F=vBL I meant Epsilon (emf)</p>

<p>Btw this is only the case because a current had already been set up.</p>

<p>If magnet stops moving through the coil, the magnetic flux stops changing.
Because magnetic flux = B * A * cos(theta)
So, for the flux to keep changing there must be a change in B, A or orientation (theta).</p>

<p>When you stop moving the magnet, the magnetic field does not change for the coil. Hence, it won’t induce the current anymore.</p>

<p>Faraday’s law states that “The induced emf in the coil lasts as long as there is a change in the magnetic flux linked with the coil.”</p>

<p>:)</p>