What is the relationship between the distance between two magnets and the force between them?
Magnetic force obeys an inverse square law with distance. If the distance between two magnets is doubled the magnetic force between them. Place the three magnets on the dowel. If there is a space between pairs of magnets, measure and record the distance between them. Remove the top magnet. This depends upon the size of the magnets involved. If it's two longish bar magnets, then the force decreases as the square of the distance. E.g. double the .
Дэвид положил трубку. Она долго лежала без сна, ожидая его звонка. Но телефон молчал.
- Magnetic Field Strength vs. Distance
- Force between magnets