How many volts is produce when a magnet passes through 70 coils?

How many volts is produce when a magnet passes through 70 coils?

I have a rare earth magnet at lest 3 tesla a very strong magnet and a solenoid (coil of wires) are 70 turns and my magnet is passing an estimated every 2 seconds and I can’t find faraday’s fromula to find the voltage produce from this action. Can you help me find the voltage prsoduce from this. I should add that the magnet is 1 1/2 inches long and 13/16th wide.