1 / 3

Oersted’s Discovery

Oersted’s Discovery. Hans Oersted first discovered in 1819 that an electric current can influence a compass, establishing the new science of magnetism. The magnitude of the force, F, on a charge, q, moving through a magnetic field, B, with a speed, v, can be calculated by:

hyman
Download Presentation

Oersted’s Discovery

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Oersted’s Discovery Hans Oersted first discovered in 1819 that an electric current can influence a compass, establishing the new science of magnetism. The magnitude of the force, F, on a charge, q, moving through a magnetic field, B, with a speed, v, can be calculated by: F = BqvsinΘ or F = Bqv if B and v are at right angles to one another. The direction of the magnetic force on a moving charge can be determined by a “right-hand rule” for positive charge flow.

  2. Oersted’s Discovery and the “right-hand rule”. Let: Your extended fingers represent the direction of the magnetic field, B. Your thumb points in the direction of the charge movement, v. The palm of your hand point in the direction of the force, F, on the moving charge.

  3. Oersted’s discovery applied to electric currents. From F = Bqv we can also show that: F = B (q/t) (vt) so, F = Bil Where i represents electrical current, and l represents the length of the current carrying wire perpendicular to the magnetic field, B.

More Related