High Voltage Engineering
EE 751
Question 139
Question
2079 Jestha2079 Shrawan2078 Kartik2077 Chaitra2074 Bhadra2072 AshwinChapter 6: Dielectric Breakdowns6.1 Electrical Breakdown in Gases: Ionization and Decay Processes, High Field Cathodic Emission, Secondary Ionization and Breakdown, Quenching, Partial Breakdown, the Corona Effect, Polarity Effects, Surge Effects
In an experiment in a certain gas, it was found that the steady state current is $5.5 \times 10^{-8}$ A at 8 kV at a distance of 0.4 cm between the plane electrodes. Keeping the field constant and reducing the distance to 0.1 cm results in a current of $5.5 \times 10^{-9}$ A. Calculate Townsend's primary ionization coefficient.
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