SCEN101 Lecture Notes - Lecture 18: Electromagnetic Induction, Cosmic Ray, Slow Motion
29 Nov 2017
School
Department
Course
Professor
Document Summary
When there is no current flowing, they all point to earth"s magnetic north direction (compasses) Stronger the current, stronger the magnetic field created. The closer you are to the wire, the stronger the magnetic field. Increases as the number of loops increases in a current-carrying coil. Increasing the number of turns of wire and increasing the current in the coil. Charged particles moving in a magnetic field experience a deflecting force. Greatest when moving at right angles to magnetic field lines. You get the strongest force when the angle is 90 degrees. Magnetic force cannot change the speed of the charge. If the angle is 0 degrees or 180 degrees, the magnetic force is zero. Earth"s magnetic field deflects many charged particles that make up cosmic radiation. North pole magnet on the southern part of earth. The magnetic force on a moving charged particle can change the particle"s.
