Now, we know that the number of electrochemical equivalents electrolysed is proportional to the whole amount of electricity which passed through the circuit, and the product of this by the electromotive force of the battery is the work done by the latter, so that in this case also Joule showed that the heat generated was proportional to the work done.
We're building a bigger battery to store the energy we generate from the river, but … Kelli shrugged.
He bought some battery powered lights to hang on the wagon and Gerald helped him pile hay on the wagon.
About Tushin and the battalion that had been in support of his battery all was forgotten.
The absence of fangs and the battery acid blood probably would have saved her life.
On the opposite side the enemy could be seen by the naked eye, and from their battery a milk-white cloud arose.
To the left from that village, amid the smoke, was something resembling a battery, but it was impossible to see it clearly with the naked eye.
The entrance under the facility was hastily dug but the tunnel running beneath the facility had thick metal walls and concrete floors and was lit by battery-operated lanterns.
The ratio of this to the whole work done by the battery is (C - C')/C, so that the efficiency is increased by diminishing C'.
Von Jacobi showed that for a given electromotive force in the battery the horse-power is greatest when the current is reduced to one-half of what it would be if the engine were at rest.
The singleneedle instrument is a vertical needle galvanoscope worked by a battery and reversing handle, or two " tapper " keys, the motions to right and left of one end of the index corresponding to the dashes and dots of the Morse alphabet.
4); a current is sent from a battery, E, through one coil of a galvanometer, g, through a high resistance, r, through one of the wires, r, and thence back from office B (at which the wires are looped), through wire 2, through another high resistance, r', through a second coil on the galvanometer, g, and thence to earth.
Total insulation resistance of looped lines = 2 R(D/d - 1); in which R is the total resistance of the looped wires, including the resistance of the two coils of the galvanometer, of the battery, and of the two resistance coils r and r' (inserted for the purpose of causing the leakage on the lines to have a maximum effect on the galvanometer.
It is not possible to work double current from one set alone, as in this case, if one key of a group of instruments is up and another is down, the battery would be short-circuited and no current would flow to line.
This system is more expen sive than the open-circuit system, ®' as the battery is always at work; but it offers some advantages on circuits where there are a number 'a' N% b '.a of intermediate stations, as the ° ° circuit is under a constant electro motive force and has the same resistance no matter which station is sending or receiving.
When only one battery is used the current at the distant end may be considerably affected by the leakage to earth along the line.
Normally a switch attached to the key cuts the battery off, and connects the line direct through the receiving relay; this switch is turned to " send " when transmission commences, and is moved back to " receive " when it ceases: this movement is done quite mechanically by the telegraphist, and as it is practically never forgotten, automatic devices (which have often been suggested) to effect the turning are wholly unnecessary.
Incoming currents pass from line through one coil of the relay, the key, and either the battery or battery resistance, according as whether the key is raised or depressed.
In this case no current flows from the battery through the line or instruments, the whole action being inductive.
By this method of transmission the battery is always to the line for the same interval of time, and alternately with opposite poles, so that the effect of electrostatic induction is reduced to a minimum.
When a key is depressed, slightly raising one of the pins, the horizontal arm will pass over it and in doing so will momentarily join the battery to the line.
By the automatic curb sender the cable is put to one or the other pole of the battery and then to the reverse pole for definite proportionate times during u b c 0 'c' C p t e a n i m e r rn e ll i a.
By the use of a key in the battery circuit as well as an interrupter or current reverser, signals can be given by breaking up the continuous hum in the telephone into long and short periods.
If they attack our center we, having the center battery on this high ground, shall withdraw the left flank under its cover, and retreat to the dip by echelons.
Mounting his horse again Prince Andrew lingered with the battery, looking at the puff from the gun that had sent the ball.
In the center Tushin's forgotten battery, which had managed to set fire to the Schon Grabern village, delayed the French advance.
Tushin's battery had been forgotten and only at the very end of the action did Prince Bagration, still hearing the cannonade in the center, send his orderly staff officer, and later Prince Andrew also, to order the battery to retire as quickly as possible.
When the supports attached to Tushin's battery had been moved away in the middle of the action by someone's order, the battery had continued firing and was only not captured by the French because the enemy could not surmise that anyone could have the effrontery to continue firing from four quite undefended guns.
On the contrary, the energetic action of that battery led the French to suppose that here--in the center--the main Russian forces were concentrated.
The militiamen, both those who had been in the village and those who had been at work on the battery, threw down their spades and ran to meet the church procession.
This was the redoubt, as yet unnamed, which afterwards became known as the Raevski Redoubt, or the Knoll Battery, but Pierre paid no special attention to it.
In actual practice the receiving instrument is so sensitive that the difference of potential between the two coatings of the condenser C3 produced by the incoming signal is only a very small fraction of the potential of the battery B.
Battery and to earth alternately, the relative time sender during which it is to battery and to earth depending to a great extent on the operator.
35) were sunk in the water; the pair on one side were connected by a battery B, and the pair on the other by a galvanometer or telegraphic receiver R.
Under these circumstances a small portion of the current from the battery is shunted through the galvanometer circuit, and can be used to make electric signals.
He found, as others have dune, that if a battery, dynamo or induction coil has its terminals connected to the earth at two distant places, a system of electric currents flows between these points through the crust of the earth.
Hence, by inserting a break-and-make key in the circuit of the battery, coil or dynamo, the uniform noise or hum in the telephone can be cut up into periods of long and short noises, which can be made to yield the signals of the Morse alphabet.
It will be observed that the circuit is not in this case actually open; the meaning of the expression " open circuit " is " no battery to line."
It differs from the open circuit in only requiring one battery (although, as in the figure, half of it is often placed at each end), in having the re circuit ceiving instrument between the line and the key, and in having the battery continuously to the line.
The battery is kept to the line by the bar c, which short-circuits the keys.
Number of stations, the sending battery is sometimes divided among them in order to give greater uniformity of current along the line.
If long circuits were worked direct with ordinary instruments, high battery power would be required in order to send sufficient Single current to actuate the apparatus.