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a, and of the length of 106.3 centimeters. As thus defined it is called the international ohm. Ohm's law (Elec.), the statement of the fact that the strength or intensity of an electrical current is directly proportional to the electro-motive force, and inversely proportional to the resistance of the circuit.…

An instrument for indicating directly resistance in ohms.

A unit of resistance equal to one billion ohms, or one thousand megohms.

One of the larger measures of electrical resistance, amounting to one million ohms.

The millionth part of an ohm.

ower; -- the reciprocal of resistance. A suggested unit is the mho, the reciprocal of the ohm.

ced by an electro-motive force of one volt acting in a circuit having a resistance of one ohm, or the quantitty transferred by one ampère in one second. Formerly called weber.

measurement, as of length, volume, weight, intensify, etc.; as, the determination of the ohm or of the wave length of light; the determination of the salt in sea water, or the oxygen in the air.

to the amount of electricity which, with the same electromotive force, passes through one ohm in one second; the capacity, which, charged with one coulomb, gives an electro-motive force of one volt.

being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2pfL, where f = frequency and L = self-inductance; for a circuit with capacity X = 1 ÷ 2pfC, where C = capacity.

energy expended in one second by an electric current of one ampere in a resistance of one ohm. One joule is approximately equal to 0.738 foot pounds. Joule's equivalent. See under Equivalent, n.

ion times, a million of; as, megameter, a million meters; megafarad, a million farads; megohm, a million ohms.

A unit of conductivity, being the reciprocal of the ohm.

, or the similar influence of a condenser; inductive resistance. Reactance is measured in ohms. The reactance of a circuit is equal to the component of the impressed electro-motive force at right angles to the current divided by the current, that is, the component of the impedance due to the self-inductance or capacity…

poor conductors or insulators have a very high resistance. The unit of resistance is the ohm. Resistance box (Elec.), a rheostat consisting of a box or case containing a number of resistance coils of standard values so arranged that they can be combined in various ways to afford more or less resistance. -- Resistance…

Fig.: To impair by time and inactivity. Johmson.

density or other properties of some substance, for example, water. See Dyne, Erg, Farad, Ohm, Poundal, etc. -- Unit deme (Biol.), a unit of the inferior order or orders of individuality. -- Unit jar (Elec.), a small, insulated Leyden jar, placed between the electrical machine and a larger jar or battery, so as to an…

, that electro-motive force which steadily applied to a conductor whose resistance is one ohm will produce a current of one ampère. It is practically equivalent to