PHYS 1062 Lecture Notes - Lecture 7: Magnetic Flux, Electromagnetic Induction, Electric Flux
Document Summary
28 & 29 (magnetic field & magnetic force: magnetic force on a current-carrying wire in a magnetic field (section 28-8) -> direction: second right-hand rule -- current, magnetic field, magnetic force. magnitude ilbsin . Example: a rectangular loop of wire hangs vertically (shown in lecture). The loop hangs from a balance which measures a downward force of 3. 48x10-2 n when i=0. 245 amp. Example: dc motor (section 28-9): magnetic force between current-carrying wires (section 29-3) Question: what happens when a magnet is cut in half: single atom, substance: 30 (electromagnetic induction: magnetic flux (pages 792 - 793) - > review velocity flux and electric flux : electromagnetic induction (sections 30-1, 30-2) - > a circular loop without battery (experiment): faraday"s law: = - n(d /dt) (sections. -> faraday"s law: the average (instantaneous) emf ( ) induced in the circuit equals the average (instantaneous) rate of change of the flux (d /dt). N is the number of turns of coil.
