figure 19.obtained at an electrical supply store. Forlarge coils of course a dynamo current is best,as for example, a coilgiving a spark of ten inches 3° SOMETHING ABOUT X-RAYS. requires a current of 10 to 12 amperes to run it.In using an influence machine like a Holtz orTopler, it has the… … figure 20. which should run about 800 revolutions perminute. B is the condenser, C is the storagebattery, D is the induction coil, E is the plateholder which contains a sensitised plate placedabout 3 or 4 inches from F, the Crookes tube. A diagram of a simpler apparatus is given inFig. 20. A is the…
X-rays · Fluorescence
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