SPM F5 3.2: Magnetic Force

The next learning outcome, is getting more interesting. By understanding it, u can create so many cool toys & gadgets such as car & chopper remote control . This subtopic requires a complete understanding on certain rules & principles. Lets go in depth,

3.2: Understanding the FORCE on a current carrying conductor in a Magentic Field.
i. U must be able to describe; What happen to a current carrying conductor in magnetic field?? Hmm... when current flows in a wire which then brought near a magnetic field, a magnetic FORCE will be produced. This force, can be illustrated through a rule called FLEMMING LEFT HAND.


This rule is used to determine the direction of force acting upon it.

Ok... how to use it?
Just treat it like a gun :) aiming towards 2 direction, i.e Current & magnetic field.

1st, u need to determine the current direction, then followed by magnetic field direction. Usually students asked me, how to know the direction of magnetic field??
Its simple, the magnetic field always move from north to south
After u've determine both direction of current & magnetic field correctly, automatically your thumb will be pointing towards the direction of force.
By watching these video,it might help u to understand the concept better.