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Is that really so?CWatters said:Won't get much emf if they are shorted turns.
MPavsic said:The bar magnets, equal in length and flux will be in sequence N-S, S-N, N-S.
MPavsic said:I wonder if there is a way to calculate induced EMF in closed loops around bar magnet, which is traveling with constant velocity v to the right as depicted?
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essenmein said:What are you trying to achieve with this magnet setup?
Induced EMF, or electromotive force, is the voltage created in a closed loop when the magnetic field around it changes. In this case, the bar magnet is moving towards or away from the loop, causing a change in the magnetic field and inducing a voltage.
The stronger the magnetic field, the greater the induced EMF will be. This is because a stronger magnetic field induces a stronger voltage in the closed loop.
The direction of induced EMF is determined by the direction of the change in the magnetic field. If the magnet is moving towards the loop, the induced EMF will be in one direction, and if it is moving away, the induced EMF will be in the opposite direction.
The faster the magnet moves towards or away from the loop, the greater the change in the magnetic field and thus the greater the induced EMF. This means that a faster moving magnet will induce a higher voltage in the closed loop.
Lenz's Law states that the direction of the induced current in a closed loop will always be such that it opposes the change that caused it. In the case of a bar magnet moving towards or away from a loop, Lenz's Law explains why the direction of the induced EMF is in the opposite direction of the change in the magnetic field.