the turn density is n=N/L = turns/m. If the current in the solenoid is I = amperes. and the relative permeability of the core is k = , then the magnetic field at the center of the solenoid is. B = Tesla = gauss. The Earth's magnetic field is about half a gauss.The relative permeability of magnetic iron is around 200.n the above expression for the magnetic field B, n is the number of turns per unit length, sometimes called the turns density.
Definition of con artist. : a person who tricks other people in order to get their money The couple lost their savings to a con artist who told them he was an investment broker.
patron of the arts meaning, patron of the arts definition | English Cobuild dictionary. patron. 1 n-count A patron is a person who supports and gives money to artists, writers, or musicians. Catherine the Great was a patron of the arts and sciences. 2 n-count The patron of a charity, group, or campaign is an important person who allows his or her name to be used for publicity.