The vacuum tube in Fig.Q1 contains argon gas at a pressure of 100 Pa. The distance...
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The vacuum tube in Fig.Q1 contains argon gas at a pressure of 100 Pa. The distance between the electrodes is 0.75 m. The DC voltage between the electrodes (labelled A and B) is increased from 0 to 750 V at which point a bright plasma discharge is formed in the tube. i) A 1 B H Fig. Q1. When the plasma forms after breakdown, a number of distinct regions in the tube can be seen. Redraw fig. 1 in your answer book naming these regions. (Hint: the positive column is one such region). Describe briefly the main physical processes happening in each of the regions, including the types of collisions and energies of the particles. iii) If the mean-free-path for ionization is 0.2 m, calculate Townsend's first coefficient a The vacuum tube in Fig.Q1 contains argon gas at a pressure of 100 Pa. The distance between the electrodes is 0.75 m. The DC voltage between the electrodes (labelled A and B) is increased from 0 to 750 V at which point a bright plasma discharge is formed in the tube. i) A 1 B H Fig. Q1. When the plasma forms after breakdown, a number of distinct regions in the tube can be seen. Redraw fig. 1 in your answer book naming these regions. (Hint: the positive column is one such region). Describe briefly the main physical processes happening in each of the regions, including the types of collisions and energies of the particles. iii) If the mean-free-path for ionization is 0.2 m, calculate Townsend's first coefficient a
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The vacuum tube in Fig Q1 contains argon gas at a pressure of 100 Pa The distance between the electrodes is 075 m From the given Fig Q1 Answer for the ... View the full answer
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College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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