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| xiv | CONTENTS. |
| Art. | Page |
|---|---|
| 580. Electromagnetic force | 208 |
| 581. Case of two circuits | 208 |
| 582. Theory of induced currents | 209 |
| 583. Mechanical action between the circuits | 210 |
| 584. All the phenomena of the mutual action of two circuits depend on a single quantity, the potential of the two circuits | 210 |
Chapter VIII.
Exploration of the Field by Means of the Secondary Circuit.
| 585. The electrokinetic momentum of the secondary circuit | 211 |
| 586. Expressed as a line-integral | 211 |
| 587. Any system of contiguous circuits is equivalent to the circuit formed by their exterior boundary | 212 |
| 588. Electrokinetic momentum expressed as a surface-integral | 212 |
| 589. A crooked portion of a circuit equivalent to a straight portion | 213 |
| 590. Electrokinetic momentum at a point expressed as a vector, | 214 |
| 591. Its relation to the magnetic induction, . Equations (A) | 214 |
| 592. Justification of these names | 215 |
| 593. Conventions with respect to the signs of translations and rotations | 216 |
| 594. Theory of a sliding piece | 217 |
| 595. Electromotive force due to the motion of a conductor | 218 |
| 596. Electromagnetic force on the sliding piece | 218 |
| 597. Four definitions of a line of magnetic induction | 219 |
| 598. General equations of electromotive force, (B) | 219 |
| 599. Analysis of the electromotive force | 222 |
| 600. The general equations referred to moving axes | 223 |
| 601. The motion of the axes changes nothing but the apparent value of the electric potential | 224 |
| 602. Electromagnetic force on a conductor | 224 |
| 603. Electromagnetic force on an element of a conducting body. Equations (C) | 226 |
Chapter IX.
General Equations..
| 604. Recapitulation | 227 |
| 605. Equations of magnetization, (D) | 228 |
| 606. Relation between magnetic force and electric currents | 229 |
| 607. Equations of electric currents, (E) | 230 |
| 608. Equations of electric displacement, (F) | 232 |
