derived
The coulomb is an SI derived unit used to measure electric charge. It is a special name given to an 'ampere second', which are both SI base units.
The ampere is one of the seven SI base units, and is used to measure current. It is defined in terms of the force between two parallel conductors due to the magnetic fields set up around those conductors.
Scott Base
5ft*8ft, 4ft*10ft, and 2ft*20 ft
Ampere = Coloumb / second is the same as saying that Coloumb = Ampere x second. Any of the two electrical units can be derived from the other one. Ampere is NOT a "fundamental quantity"; it is an SI base unit. The base units are not necessarily those that are somehow considered more "fundamental" than others; instead, the base units are those that can be measured with a great accuracy. In the case of current vs. charge, it seems that measuring a current can be done with greater accuracy than measuring a charge directly; therefore, the current is the base unit, and the current is derived. However, this doesn't make current any more "fundamental" than charge.
measurment
Derived units are made from combination of base units?
They are 15 and 45 units.
4 base units each 1 meter in lenght
base on what you measure to use the metric units.
Those are called derived units.
meters and seconds
meters,seconds,and grams
a specific combination of base units with its own name
The other base measurement which is 18 units in length. Check: Area = 1/2*(18+3)*10 = 105 square units
20
Metre, kilogram and litre or cubic metre.