| Name an object whose usefulness depends upon its retentivity. |
| Note that residual magnetism and retentivity are the same when the material has been magnetized to the saturation point. |
| In addition to providing amusement experience the games also support and promote the powers of concentration, awareness and retentivity as well as visual perception. |
| Types S and SA are differentiated from Types N and NA principally by their ability to develop high early plasticity, higher water retentivity, and by their limitation on unhydrated oxide content. |
| The high retentivity of the rotor material causes its magnetic orientation to lag behind the rotating magnetic field by a fraction of a rotation. |
| Hardened steel has a high degree of retentivity, while soft iron retains but little magnetism. |
