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ponderoˈmotive, a. Physics.
[f. L. pondus, ponder- weight, after electromotive.]
That tends to move a weight; weight-moving; usu. applied spec. to such forces exerted upon bodies by electric or magnetic fields.
1881Phil. Mag. XII. 17 The force with which one quantity of electricity acts upon another quantity of electricity may be regarded either as an electromotive force or as a true ponderomotive force; for it tends to move electricity, and also to move matter, if matter be associated with the electricity. 1884tr. Clausius in Phil. Mag. Jan. 59. 1884 Higgs Magn. Dyn. Electr. Mech. 272 The other ponderomotive force which the rotating helix experiences from its magnetic iron core..further depends upon the magnetic moment of the iron core. 1934I. M. Freeman tr. Joos's Theoret. Physics xv. 296 The current in the segment, the magnetic field, and the ponderomotive force must form a right-handed orthogonal system in this order (Fleming's left-hand rule). 1964R. R. Birss Electr. & Magnetic Forces i. 1 Ponderomotive forces are also exerted on dielectric bodies in electric fields. 1964S. K. Runcorn in A. E. M. Nairn Probl. Palaeoclimatol. 192 The varying fields generated in the core..will also generate induced currents in the mantle, and the ponderomotive forces resulting from these will cause angular acceleration and deceleration of the mantle on time-scales of 100 years. 1978Nature 23 Mar. 316/2 In this case, ponderomotive forces were used to overcome the power barrier. |