Question

An electron (see above for charge value) traveling at 5. Tx10 % enters a resson of uniform mag netie field is where the Sield direction is perpendicular (90°) to the etecta's velocity vector v Upon entering the field region the electron erverieures a maguetie force Fof 3.8x10- N Jiveeted as shown by the arrow F in the diagron. (6) Calculate the strength Teslas of the mesuetie Freld te th 8.-1.610-19 Coul electron path outside F B-? 13 - Sield region Ans () 31 - b Aus(b) B les port (Circle OUT correct direction) @ In a demonstration of magnetic force, a wire carries a current through a maguetic field produced by a strong maguet. The maquet's B - Sield has strength 0.055T and is directed from left to right as shown by the field lines on the diagram. The length of wire exposed to the magnetic field is 0,040m and it carries a current of 30 A toward the top of the page. What are the size and direction of the magnetic force F on the wine ? Pi 30A wive magnet magnet N sÀ ở** Newtons Curvent 30A F: and direction is (circle one) Xar IN GT 4P DOWN LEFT RIGHT

Answer 1

Page on Given velocity of election, o = 5.2x100 m/s force, f: 3.8x10-14 N q=1.6x10190 (is force change particle is given a qb x3 3.8X10 14 = 1.6810 5. 2x10" x B xsin ao 3.8x 1014 1.6x16 1945. 2x106 -19 X5 B 2) B = 0.045 T in An to fleming's left hand sile, direction of magnetic field is inside the plene of paper. Given B-0055T length = 0.04 m I: 30A - force on wire can be given as = I exi Il B sino FE = 30x0.04x0.055 smo off-0.0661 Ac to fleming's left hand rule, forse is inside the plene of paper.