Abstract
Some classroom demonstrations are possible with the use of a data-acquisition system. One such demonstration is described below. The magnetic force acting on a current-carrying conductor is measured as a function of the flowing current. The demonstration consists of weighing a straight current-carrying conductor subjected to a uniform magnetic field of a permanent magnet. The magnetic force acting on the conductor shows the influence of the magnetic field on moving electric charges. For the demonstration, one needs a force sensor and a sensor measuring the current flowing through the conductor. Both sensors are connected to a data-acquisition system. The demonstration gives better understanding of the magnetic force acting on a current-carrying conductor, as well as on moving electric charges.
| Original language | English |
|---|---|
| Pages (from-to) | 500-501 |
| Number of pages | 2 |
| Journal | Physics Teacher |
| Volume | 42 |
| Issue number | 8 |
| DOIs | |
| State | Published - Nov 2004 |