phy1020.DVI

(Darren Dugan) #1

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.

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