Krizik's Cores

Cores of iron for use with magnetizing coils, q. v. They are so shaped, the metal increasing in quantity per unit of length, as the centre is approached, that the pull of the excited coil upon them will as far as po ible be equal in all positions. A uniform cylinder is attracted with varying force according to its position; the Krizik bars or cores are attracted approximately uniformly through a considerable range. 318   STANDARD ELECTRICAL DICTIONARY. **L** Symbol for length and also for the unit of inductance or coefficient of induction, because the dimensions of inductance are length.