Directions Drop > The right hand rules

The right hand rules

For angular velocity:
1. curl fingers of right hand in the direction of motion.
2. leave the thumb open and pointed outwards (like thumbs up or down).
3. the angular velocity will be parallel to the thumb.

For torque:
1. open right hand with palm facing up.
2. radius will be parallel to thumb.
3. force will be parallel to fingers.
4. torque will be perpendicular to palm.

For force on a charge due to the magnetic field:
1. open right hand with palm facing up.
2. charge will be parallel to thumb.
3. magnetic field will be parallel to fingers.
4. force will be perpendicular to palm.

For the generation of a magnetic field due to a current in a straight conductor:
1. curl fingers of right hand in the direction of motion.
2. leave the thumb open and pointed outwards (like thumbs up or down).
3. current will be parallel to thumb.
4. magnetic field will follow the curl of the fingers.
October 28, 2004 | Unregistered CommenterEdmond Byrnes