Page:A Treatise on Electricity and Magnetism - Volume 2.djvu/272

 Rh Magnetic Pair.

(3) Quantity of free magnetism, or strength of a pole. $$m$$

(4) Magnetic potential. . . . . . . $$\Omega$$

Electrokinetic Pair.

(5) Electrokinetic momentum of a circuit. . . $$p$$

(6) Electric current. . . . . . . $$C$$



Electrostatic Pair.

(7) Electric displacement (measured by surface-density). $$\mathfrak{D}$$

(8) Electromotive force at a point. . . . $$\mathfrak{E}$$

Magnetic Pair.

(9) Magnetic induction. . . . . . $$\mathfrak{B}$$

(10) Magnetic force. . . . . . . $$\mathfrak{H}$$

Electrokinetic Pair.

(11) Intensity of electric current at a point. . . $$\mathfrak{C}$$

(12) Vector potential of electric currents. . . $$\mathfrak{A}$$

622.] The following relations exist between these quantities. In the first place, since the dimensions of energy are $$\left[\frac{L^2M}{T^2} \right]$$, and those of energy referred to unit of volume $$\left[\frac{M}{LT^2} \right]$$, we have the following equations of dimensions:

Secondly, since e, p and $$\mathfrak{A}$$ are the time-integrals of C, E, and $$\mathfrak{E}$$ respectively

Thirdly, since E, Ω, and p are the line-integrals of $$\mathfrak{E}$$, $$\mathfrak{H}$$, and $$\mathfrak{A}$$ respectively, Finally, since e, C, and m are the surface-integrals of $$\mathfrak{D}$$, $$\mathfrak{G}$$, and $$\mathfrak{B}$$ respectively,