An Introduction to the Mathematical Theory of Electricity and Magnetism |
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Common terms and phrases
action armature battery C. G. S. units called cell centimetre centre circuit coefficient coil component condenser constant copper current flowing current passing cylinder deflexion denote density dimensions disc distribution ductor dx dy dz dynamo Edition electrical intensity electrical resistance electrodes electrostatic element equal equation equipotential surfaces galvanometer given conductor heat indefinitely small inside inverse joules junction Laplace's equation length Let us consider lines of force lines of induction magnetic axis magnetic field magnetic induction magnetic intensity magnetic moment measured medium metals needle negative obtained plane pole positive direction produced proportional quantity of electricity quantity of induction quantity of magnetic ratio right angles self-induction shell solenoid solid angle specific inductive capacity sphere substance surface of separation surface-density temperature tricity tube of force V₁ V₂ variations of potential velocity wire
Popular passages
Page 4 - ... proportional to the product of their charges and inversely proportional to the square of the distance between them; and this law is valid whether the charges are equal or unequal.
Page 129 - A current of unit intensity is such that when one centimetre length of its circuit is bent into an arc of one centimetre radius, it exerts a force of one dyne on a unit magnetic pole placed at its center.
Page 54 - An electric image is an electrified point, or system of points, on one side of a surface, which would produce on the other side of that surface the tame electrical action which the actual electrification of that turface really does produce.
Page 73 - Magnetic Potential. The potential at any point of a magnetic field is the work which would be done by the magnetic forces of the field upon a positive unit of magnetism as it moves from that point to an infinite distance.
Page 173 - JJenz's law, which is as follows : When a conductor is moving in a magnetic field, a current is induced in the conductor in such a direction as to oppose, by its mechanical action, the motion to which the induced current is due. Another way of stating...
Page 9 - WALL. A Concise French Grammar, including Phonology, Accidence, and Syntax, with Historical Notes. For Use in Upper and Middle Forms. By ARTHUR H. WALL, MA Crown 8vo, 4*.