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1. What is the induced EMF when the south pole end of magnet moves closer to...

1. What is the induced EMF when the south pole end of magnet moves closer to the plane of the coil? When the magnet is stationary what happens to the induced voltage?

2. What happens when the north pole end of the magnet moes all the way through a coil?

Explain in detail please

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Answer #1
1. When the south pole cmes closer to the plane of coil , the flux of magnetic field through the coil increases. An emf is induced in the loop in a direction so as to oppose the change in flux caused by the magnet. 2. When the north pole end of the magnet moes all the way through a coil, there is an EMF induced in the loop. This has three stages i) When the north pole is approaching towards the plane but is yet to cross, the EMF is positive ii) While the north pole is crossing the induced EMF is zero. iii) When the nrth pole has croosed and still continues to move, the EMF is negative
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