How to calculate magnetic field?

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radaballer
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I understand the complexity of magnetism, but I need an approximation of the magnetic field strength of this magnet in order to calculate induced emf according to faradays equation. It is my understanding magnetic flux is induced by field lines perpendicular to the wires of the solenoid which the magnet passes through. There is a magnetic field calculator on the website above, can I calculate the field strength at the location where the solenoid which the magnet passes through and use the answer in faradays law?
 

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