Basic Physics II Evidences - DrJJ - UiTM

TOPIC LEARNING OUTCOMES REMARKS HOUR5.1 Permanent magnets andmagnetic forcea) Sketch the magnetic field lines produced by permanentmagnets.‣ Bar magnet and horse-shoemagnets2b) Describe the relationship between a magnet’s poles and thefield lines produced.c) Describe the effect of magnetic field on static and movingelectric charges.d) Write the strength and determine the direction of magneticforce acting on moving charges by using the First Right HandRule.e) Use the First Right Hand Rule to obtain direction of motion,direction of magnetic field or the magnetic force wheneverany two of the quantities are known.‣ Use tiny compasses to representB field lines and to showdirection of the field. Brieflydescribe the Earth as a giantmagnet. Briefly mention thecommon units used for fieldstrength and some typical valuesof B.‣ Only moving charges withvelocity perpendicular to orhaving the velocity componentwhich is perpendicular to thefield will experience a magneticforce. F = qvBsinθvB. NONEED to introduce crossproduct. Use either the first righthand rule (thumb along velocity,other fingers along B then thepalm will show force acting on a+ve charge) or any other easy-toremember rules to determinedirection of the force.Physics Lesson Outcomes-Electricity & Magnetismhttp://drjj.uitm.edu.my; HP:+60-19-355-1621Page 7 of 12Prepared by Assoc. Prof. Dr. Jaafar Jantan aka Dr. JJEmail: jjnita@salam.uitm.edu.my; drjjlanita@hotmail.com