Appendix U
Right-Hand Rules
- Vector cross product.Curl the fingers of your right hand from one vectorAto a second vectorB; then
your right thumb points in the direction of the cross productAB. - Magnetic field in a long wire.Point the thumb of your right hand in the direction of the current; then
the fingers of your right hand curl in the direction of the magnetic field. - Magnetic field in a solenoid.Curl the fingers of your right hand in the direction of the current; then
the thumb of your right hand points in the direction of the magnetic field inside the solenoid. - Magnetic moment of a coil.Curl the fingers of your right hand in the direction of the current flowing
around the coil; then the thumb of your right hand points in the direction of the magnetic moment. - Gyro motion of a negative charge in a magnetic field.Point the thumb of your right hand in the
direction of the magnetic field; then the fingers of your right hand curl in the direction of gyro motion
of anegativecharge.