  The magnetostatic interaction between two ferromagnetic microwires is
calculated as a function of their geometric parameters and compared with those
measured through magnetic hysteresis loops of glass-coated amorphous Fe%
$_{77.5}$Si$_{7.5}$B$_{15}$ microwires. The hysteresis loops are characterized
by well-defined Barkhausen jumps corresponding each to the magnetization
reversal of individual microwires, separated by horizontal plateaux. It is
shown that the magnetostatic interaction between them is responsible for the
appearance of these plateaux. Finally, using the expression for the
magnetostatic interaction is trivial to obtain the interacting force between
microwires. Our results are intended to provide guidelines for the use of these
microwires with technological purpose such as the fabrication of magnetic
sensors.
