hannahhh565
02.07.2020 •
Physics
This diagram shows a game. The player has to control the strength of the electromagnets to make a steel ball move through a maze. The electromagnets at B and D are connected to the same control knob. If you turn the knob to the right, the ball moves towards B. Explain how the control knob changes the current in electromagnets B and D to make this happen.
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