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What are the magnitude of voltages used in Electro discharge machining?

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in Advanced Machining by (962k points)
What are the magnitude of voltages used in Electro discharge machining?

(a) 1 to 20 V

(b) 20 to 120 V

(c) 120 to 220 V

(d) 220 to 320 V

This question was posed to me during an internship interview.

My doubt is from EDM-Mechanism of Material Removal topic in portion Thermal Processes of Advanced Machining

1 Answer

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Best answer
Right choice is (b) 20 to 120 V

To elaborate: In EDM, the magnitude of voltages range between 20 and 120 V.

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