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| Q. |
Nickel can be machined with 100% current efficiency, when current density value is |
| A. | 10 a/cm2 |
| B. | 25 a/cm2 |
| C. | 45 a/cm2 |
| D. | 80 a/cm2 |
| Answer» B. 25 a/cm2 | |
| Explanation: nickel is a metal suggested by khayry, which can be machined at 100% current efficiency, if current density is 25 a/cm2. | |
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