This coil usually has a resistance of about 75 ohms and the meaning of the ohmic resistance of a receiver and its bearing on the sensitiveness of it will be explained a little farther along.
This is greater than its ordinary ohmic resistance due to the skin effect.
The drop in potential caused through the presence of reactance in the circuit, as distinguished from that caused byohmic resistance which is known as the ohmic drop.
In the diagram it should be noted that the active pressure is called the ohmic drop, and the capacity pressure, the reactance drop.
It necessarily results in an increase of ohmic loss; as compared with a steady current: proportional to the square of the total current flowing and consequently gives rise to an apparent increase of ohmic resistance.
Graphical method of finding angle of lag when the ohmic drop and reactance drop are given.
In some problems it is required to find the impedance of a circuit in which the ohmic and spurious resistances are given.
It may be caused by ohmic resistance or self-induction.
It is impossible to overcome it entirely, but merely in part, for the ohmicresistance cannot be overcome.
Magnet winding H, connected to bands C and D on the ends of this short length of rod has an ohmic resistance of 3 ohms, but is highly inductive.
It is equivalent to an increase of ohmic resistance and therefore opposes the current.
Its area in circular mils multiplied by the frequency, gives the ratio of the wire's ohmic resistance to its combined resistance.
The function of the short length of resistance rod CD is as follows: It has an ohmic resistance of about 30 ohms but is non-inductive.
By reason of this action the ohmic resistance of any conductor is somewhat greater for an alternating than for a continuous current, because the full cross section of the conductor cannot be utilized with the former current.
To avoid this difficulty it is the practice to connect a conductor of rather large ohmic resistance such as a rod of carborundum in series with the brass cylinders and air-gaps of lightning arresters.
With a 4-0 wire, and the current frequency named, the increase in the ohmic resistance for alternating over that for continuous current does not reach one-half of one per cent.
One effect of inductance is to cut down the voltage at that end of the line where the power is delivered to a sub-station, just as is also done by the ohmic resistance of the line conductors.
At the same time the current from the neutral wire flows through the four half coils in parallel, and being direct current is impeded only by the ohmic resistance of the coils, which is low, giving only a slight loss in the coils.
If the high resistance can carry the discharge current without giving an ohmicdrop sufficient to break down the shunted gaps GH, nothing further occurs--the arc goes out.
The number and ohmic value of the resistance rods used in the various arresters depend upon the voltage and current of the circuit.
The coils 2 and 3 are made to have high impedance, while 1 and 4 are so wound as to be non-inductive and, therefore, offer no impedance save that of their ohmic resistance.
It should be remembered that an impedance coil obstructs the passage of fluctuating current, not so much by ohmic resistance as by offering an opposing or counter-electromotive force.
Impedance coils used for this purpose are made of low ohmic resistance but of a comparatively great number of turns, and, therefore, present a good path for steady currents and a difficult path for voice currents.
Voice currents find ready path through these non-inductive windings because of the fact that, being non-inductive, they present only their straight ohmic resistance.
The steady currents from the battery find ready path through these impedance coils which are of comparatively low ohmic resistance, and the current divides and passes in multiple over the circuits of the two lines.
In this way fresh analogies are revealed to us, which may often be followed into detail; ohmic resistance resembles the viscosity of liquids; hysteresis would resemble rather the friction of solids.
In the wire AMB, the electricity is displaced through a fixed conductor, like a voltaic current, overcoming an ohmic resistance and developing heat; we say that it is displaced by conduction.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ohmic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
