What are the dimensions of the pointing vector in physics?

[PhDorBust]

Sorry for the trivial question. But I'm not a physics student by training and I think I running into problems due to interchanging metrical systems.

$$S = E \times H$$

$$E \equiv \frac{N}{C}$$

$$H \equiv \frac{N}{A \cdot m}<br /> <br />$$

Also, is there any standard operator for denoted dimensions of a quantity? The answer should be power per unit area - I get some extra charge dimensions among other things. Cross product should behave dimensionally as normal multiplication.

 

[ehild]

$$H \equiv \frac{N}{A \cdot m}<br /> <br />$$

The dimension of H is current/length so the unit is A/m.

ehild