Question

For a certain gas the measured ( pd ) min , the minimum value of the product of gas pressure and gap distance is 0.35 torr cm . The secondary ionization coefficient is given as γ = 0.01 .
a) If the minimum breakdown voltage is 342 volts, find the gas constants A and B

b) In an experiment breakdown is observed at gap distance d = 3 cm for p = 1000 torrs. Find the breakdown voltage and the corresponding E/P during breakdown using γ = 0.01 and the calculated gas constants A and B in section (a).

c) Find α, the first ionization coefficient for the parameters defined and calculated in section (b).

Answer 1