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What is the temperature reached by cathode in order to produce plasma beam?

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in Advanced Machining by (962k points)
What is the temperature reached by cathode in order to produce plasma beam?

(a) 12000 ºC

(b) 18000 ºC

(c) 28000 ºC

(d) 40000 ºC

This question was posed to me in examination.

My doubt is from Plasma Beam Machining-Introduction And Machining system in section Thermal Processes of Advanced Machining

1 Answer

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Best answer
Correct choice is (c) 28000 ºC

To elaborate: The temperature reached by cathode to produce plasma arc is about 28000 ºC in Plasma Beam Machining.

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