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Role of return current in the excitation of electronmagnetohydrodynamic structures by biased electrodes

Published online by Cambridge University Press:  31 January 2012

G. RAVI ,
S. K. MATTOO ,
L. M. AWASTHI ,
P. K. SRIVASTAVA  and
V. P. ANITHA
G. RAVI
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar, India ([email protected])
S. K. MATTOO
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar, India ([email protected])
L. M. AWASTHI
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar, India ([email protected])
P. K. SRIVASTAVA
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar, India ([email protected])
V. P. ANITHA
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar, India ([email protected])
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Abstract

This paper presents an experimental investigation on the role of return current in excitation of electronmagnetohydrodynamic (EMHD) structures. It is shown that only when return currents are excited parallel or anti-parallel to the background magnetic field the EMHD structures can be excited by a biased electrode in the plasma.

Type
Papers
Information
Journal of Plasma Physics , Volume 78 , Issue 3 , June 2012 , pp. 241 - 248
Copyright
Copyright © Cambridge University Press 2012

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