Summary
The rectification in discharge tubes has been quantitatively measured for two ranges of pressures varying from 500 to 20×10−4 cm. Hg. and 0 to 1·8 cm. in the case of the gases air (i.e., a mixture of O2 and N2), oxygen and nitrogen in differently designed discharge tubes. Rectification is found to be present in all cases under all conditions, except in one; although the direction and magnitude of rectification varies within wide limit. Rectification is not observed only in the case of a discharge tube with electrodes identical in shape, size and material and that too, only for the range of pressures 400 to 100×10−4 cm. Hg. For this range of pressures in the other discharge tube very similar variation of rectification with pressure in the different gases used is observed.
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References
Koller, L. R.Physics of Electron Tubes (McGraw Hill), 1934, pp. 112–18.
Townsend, J. S.Electricity in Gases (Oxford), 1915, pp. 446–50.
Thomson, J. J.Phil. Mag., 1939,27, 29.
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(Communicated by Dr. R. K. Asundi)
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Chiplonkar, V.T. Rectification in discharge tubes. Proc. Indian Acad. Sci. (Math. Sci.) 10, 381 (1939). https://doi.org/10.1007/BF03172526
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DOI: https://doi.org/10.1007/BF03172526