Symbols for dimensions of base quantities of the ISQ.
| Base quantity . | Symbol for dimension . |
|---|---|
| Thus, the dimension of a quantity Q is denoted by dim Q = LαMβTγIδΘεNζJη where the exponents, termed dimensional exponents, are positive, negative, or zero. | |
| length | L |
| mass | M |
| time | T |
| electric current | I |
| thermodynamic temperature | Θ |
| amount of substance | N |
| luminous intensity | J |
| Base quantity . | Symbol for dimension . |
|---|---|
| Thus, the dimension of a quantity Q is denoted by dim Q = LαMβTγIδΘεNζJη where the exponents, termed dimensional exponents, are positive, negative, or zero. | |
| length | L |
| mass | M |
| time | T |
| electric current | I |
| thermodynamic temperature | Θ |
| amount of substance | N |
| luminous intensity | J |