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Physicist
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Using cgs units, can I set c = h-bar =1 ? or should I change some other units to do that?
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Yes, setting c=h-bar=1 is a common practice in cgs units. This is known as the "natural units" system, where fundamental constants are set to 1 to simplify calculations.
When c=h-bar=1, all units of measurement in cgs will be expressed in terms of these fundamental constants. For example, length will be measured in terms of seconds instead of centimeters, and mass will be measured in terms of energy instead of grams.
There are no inherent limitations to using c=h-bar=1 in cgs units. However, it may not be practical or convenient for all scientific applications. Some equations may become more complicated or less intuitive when using natural units.
Yes, it is possible to convert from cgs units with c=h-bar=1 to other unit systems. However, the conversion factors will be different from the conventional cgs units, so it may require additional calculations.
Setting c=h-bar=1 does not change the physical interpretation of equations. The values and relationships of physical quantities remain the same, but the units of measurement become more simplified and may have different numerical values.