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Q. |
What is the radius of channel, when electrical breakdown occur? |
A. | 4 µm |
B. | 6 µm |
C. | 8 µm |
D. | 10 µm |
Answer» D. 10 µm | |
Explanation: in edm, the electrical breakdown occurs in dielectric in a channel of radius about 10 µm. |
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