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- Homework Statement
- A plate of cupper with mass m has a square shape with side length b and thickness d. The plate is suspended vertically by a spring with constant k in an uniform magnetic field horizontal and parallel with the plates plane. Find the period of vertical oscillations of the plate

- Homework Equations
- Fel=kx, U=d(flux)/dt, T=2pi √m/keq

Tried to find the resultant force, but I can't see how the magnetic field affects. I used Faraday's law to find the the diferece of potentials in the plate Wich should be B.d.v, where v is the vertical velocity of plate, but there were not given the resistance or resistivity to relate with the current and afterwards with the magnetic force

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