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Ch Apter P A G
THE APPLICATION OF SHORTWAVE DIATHERMY
PHYSICS OF HEAT AND RADIATIONS
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absorbed alternating current amperes anode apparatus applied atom blood supply cable capacity cathode cause cells chemical circuit condenser conductor connected current flows current passes denervated muscle diathermy dielectric constant direct current discharge dose duration effect electric field electromagnetic electromagnetic induction energy erythema faradic filament frequency grid heat hydrogen hydroxyl impedance impulses increased inductance infra-red rays innervated insulating intensity of current ionisation ions lamp lesion lines of force magnetic field material metal metal rectifiers meter method milliampere milliseconds molecules move movement muscle contraction negative charge obtained occur oscillator output p-type semiconductor parallel pathway patient physiotherapist placed plates pole positive charge potential produced quantity of electricity reaction reduced reflector resistance rise secondary coil self-induced EMF sensory short-wave diathermy shown in Fig skin solution surface surged switch temperature treatment head tube turns of wire ultra-violet rays valve varies voltage volts wave-length wireless waves wound zinc