E. M. U : The electro-magnetic unit of current strength (the Dekampere). When flowing in a circuit of 1 cm length bent into the arc of a circle of 1 cm radius it produces a magnetic field of unit intensity at the centre
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}