How to use your right hand to determine the direction of the magnetic field lines: a) a straight conductor with current; b) coils with current?

bystudin | October 28, 2020 | Education

a) the direction of the magnetic field lines can be determined with the help of the right hand: if you grasp the conductor with the current with the palm of your right hand so that the thumbs aside are directed along the current, then the bent four fingers will indicate the direction of the magnetic field lines; b) the direction of the magnetic field lines is also determined here with the help of the right hand, but only for the solenoid. If you grasp the coil with the current with the palm of your right hand so that four fingers are located in the direction of the current, then the set thumb will indicate the direction of the magnetic field lines inside the coil.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.