4. A negative ion gives up its extra electron is: a) photo ionization b) simple collision ionization c) Electron detachment d) Electron Attachment

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4. A negative ion gives up its extra electron is:
a) photo ionization
b) simple collision ionization
c) Electron detachment
d) Electron Attachment
5. The electric field E, in a gas bubble immersed in a liquid of permittivity &, is
by:
36
a) E,:
E.
2€1+€1
%3D
361
b) E, =
%3D
2€1+1
2
c) E, = 1.4
%3D
RE2
dE
d) E,
%3D
E-2€z
dx
6. Formation of a permanent conducting path across a surface of solid insulation
called as:
a) Tracking
b) Flashover
c) Oxidation
d) Erosion
Transcribed Image Text:4. A negative ion gives up its extra electron is: a) photo ionization b) simple collision ionization c) Electron detachment d) Electron Attachment 5. The electric field E, in a gas bubble immersed in a liquid of permittivity &, is by: 36 a) E,: E. 2€1+€1 %3D 361 b) E, = %3D 2€1+1 2 c) E, = 1.4 %3D RE2 dE d) E, %3D E-2€z dx 6. Formation of a permanent conducting path across a surface of solid insulation called as: a) Tracking b) Flashover c) Oxidation d) Erosion
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