What is the duration of sparks that are produced in Electro discharge

1.	What is the duration of sparks that are produced in Electro discharge machining?
A.	0.001 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1 ¬¨¬®¬¨¬µs
B.	0.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2000 ¬¨¬®¬¨¬µs
C.	0.2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 100 ms
D.	100 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2000 ms
Answer» C. 0.2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 100 ms

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