# Electrodynamic sentence example

Now the electric force (P,Q,R) is the force acting on the electrons of the medium moving with velocity v; consequently by Faraday's

**electrodynamic**law (P,Q,R) = (P',Q' - vc, R'+vb) where (P',Q',R') is the force that would act on electrons at rest, and (a,b,c) is the magnetic induction.If v varies with respect to locality, or if there is a velocity of convection (p,q,r) variable with respect to direction and position, and analytical expression of the relation (ii) assumes a more complex form; we thus derive the most general equations of

**electrodynamic**propagation for matter treated as continuous, anyhow distributed and moving in any manner.These results constitute a far-reaching development of the modern or

**electrodynamic**theory of the aether, of which the issue can hardly yet be foreseen.Electromagnetic voltmeters may therefore be thermal, electromagnetic or

**electrodynamic**. As a rule, electromagnetic voltmeters are only suitable for the measurement of relatively small potentials - o to 200 or 300 volts.Hence we may classify ammeters into (1) Thermal; (2) Electromagnetic, and (3)

**Electrodynamic**instruments.AdvertisementIn 1846 Weber announced his famous hypothesis concerning the connexion of electrostatic and

**electrodynamic**phenomena.His work on the

**electrodynamic**qualities of metals, thermo-electricity, and his contributions to galvanometry, were not less massive and profound.