The induction may therefore be specified as B lines per square centimetre.
This was done by contract, which usually specified what the parent had to leave and what maintenance was expected.
He may only stand for one, and all votes given for him in any other than that specified in the declaration are void.
It forbade the granting of passes except to certain specified classes, - a provision entirely absent from the original measure.
The small magnet may be a sphere rigidly magnetized in the direction of Ho; if this is replaced by an isotropic sphere inductively magnetized by the field, then, for a displacement so small that the magnetization of the sphere may be regarded as unchanged, we shall have dW = - vIdHo = v I+-, whence W = - 2 I + H2 ° (37) The mechanical force acting on the sphere in the direction of displacement x is 1 Hopkinson specified the retentiveness by the numerical value of the " residual induction " (=47rI).