Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 91
. The frequency of the break and the amount of currentpassing through may be adjusted within fairly wide limitsby altering the conditions of E.M.F. Self-induction and areaof the positive electrode and their interdependence may bebriefly summarised for practical purposes as follows :— Keeping the… … Rheostat Break. Fig. 35. frequency, as evidenced by the higher pitch of thenoise. Keeping the resistance of the circuit constant, but in-creasing the current by enlarging the area of the anode(reducing the current density), we obtain slower vibra-tions. Keeping both the resistance and the area…
Radiography · X-rays
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