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| Q. |
The main advantage of having small focal spot on an X ray tube is: |
| A. | Heat is conducted away more efficiently than with a large focal spot |
| B. | A smaller focal spot is unlikely to be damaged from the required tube currents |
| C. | Longer tube life |
| D. | A smaller focal spot allows sharper radiographic images than does a larger |
| Answer» D. A smaller focal spot allows sharper radiographic images than does a larger | |
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