<Tr> <Th> Constant </Th> <Th> Symbol </Th> <Th> Value </Th> </Tr> <Tr> <Th> Atomic mass unit </Th> <Td> u </Td> <Td> 1.660 538 782 × 10 g </Td> </Tr> <Tr> <Th> Bohr magneton </Th> <Td> μ </Td> <Td> 9.274 009 15 × 10 erg / G (EMU, Gaussian) </Td> </Tr> <Tr> <Td> 2.780 278 00 × 10 statA ⋅ cm (ESU) </Td> </Tr>

What is difference between si and cgs unit