Question

What is the dimension of charge?

Answer 1

Electric charge, q, is its own dimension. 

Answer 2

QuantityDimensionAlternativesCharge,
electrics .AC (coulomb)Charge, magnetic (bound)m-2.ACharge, quantum1DimensionlessCharge, molecular/ionic, quantum1Dimensionless
The SI derived unit of electric charge is the coulomb (C). In electrical engineering, it is also common to use the ampere-hour (Ah), and, in chemistry, it is common to use the elementary charge (e as a unit). The symbol Q often denotes charge.


The dimension of power is energy divided by time. The SI unit of power is the watt (W), which is equal to one joule per second.