In my experiment, I intended to find out how the change in the bar magnet drop height from solenoid affected the emf induced in the solenoid, however, I am unable to come up with an equation that shows a relationship between the two variables. I have thought of Biot-Savart law, but I do not think it is applicable since the law requires a current element, not a magnet. Please do help me out as I am really scared and overstressing. I have seeked help and only made me more confused, so any help will be beneficial. Thanks!