The battery in the lantern might be dead or the fall might have broken it.
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.
I bought a battery, but it didn't do any good.
"It had a small size battery pack on the back," Howie offered, "not as large as a car battery."
I just came back from a battery of tests that said nothing's wrong with me.
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.
Pierre went to the battery and the adjutant rode on.
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.
We can get a view from there and in our battery it is still bearable, said the adjutant.
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.
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.
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 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.
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.
At the same time the commander of the artillery of the 1st Corps, General Pernetti, with thirty cannon of Campan's division and all the howitzers of Dessaix's and Friant's divisions, will move forward, open fire, and overwhelm with shellfire the enemy's battery, against which will operate:
The commander of the artillery of the 3rd Corps, General Fouche, will place the howitzers of the 3rd and 8th Corps, sixteen in all, on the flanks of the battery that is to bombard the entrenchment on the left, which will have forty guns in all directed against it.
The guns of that battery were being fired continually one after another with a deafening roar, enveloping the whole neighborhood in powder smoke.
But the men in the battery seemed not to notice this, and merry voices and jokes were heard on all sides.
"Now then, you foxes!" said another, laughing at some militiamen who, stooping low, entered the battery to carry away the wounded man.
From the battery they could be seen running back past it carrying their wounded on their muskets.
After this from amid the ranks of infantry to the right of the battery came the sound of a drum and shouts of command, and from the battery one saw how those ranks of infantry moved forward.
On the right of the battery soldiers shouting "Hurrah!" were running not forwards but backwards, it seemed to Pierre.
If we could drive the engine so fast as to reduce C' to zero, the whole of the energy of the battery would be available, no heat being produced in the wires, but the horse-power of the engine would be indefinitely small.
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.
When only one battery is used the current at the distant end may be considerably affected by the leakage to earth 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.
In such cases it is usual to employ a local battery to produce the signals, and to close the local battery circuit by means of a relay working.
The local 1_ E I battery B 1 then sends a current through the in FIG.
- Universal Battery Working.
23, representing the " differential " method, B is the sending battery, B 1 a resistance equal to that of the battery, R a rheostat and C an adjustable condenser.
In this case no current flows from the battery through the line or instruments, the whole action being inductive.
In the raised position a negative battery is connected to the distributor and in the depressed position a positive battery.
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.
"That's our battery," said the staff officer indicating the highest point.
"And, if your excellency will allow me to express my opinion," he continued, "we owe today's success chiefly to the action of that battery and the heroic endurance of Captain Tushin and his company," and without awaiting a reply, Prince Andrew rose and left the table.
Having forced his way out of the crowd of fugitives, Prince Andrew, trying to keep near Kutuzov, saw on the slope of the hill amid the smoke a Russian battery that was still firing and Frenchmen running toward it.
Higher up stood some Russian infantry, neither moving forward to protect the battery nor backward with the fleeing crowd.
The French had attacked the battery and, seeing Kutuzov, were firing at him.
Rostov riding in front gave the order "Forward!" and the hussars, with clanking sabers and subdued talk, their horses' hoofs splashing in the mud, defiled in fours and moved along the broad road planted with birch trees on each side, following the infantry and a battery that had gone on in front.
The squadron overtook and passed the infantry and the battery--which had also quickened their pace--rode down a hill, and passing through an empty and deserted village again ascended.
Having reached the knoll, Pierre sat down at one end of a trench surrounding the battery and gazed at what was going on around him with an unconsciously happy smile.
In contrast with the dread felt by the infantrymen placed in support, here in the battery where a small number of men busy at their work were separated from the rest by a trench, everyone experienced a common and as it were family feeling of animation.
Some militiamen who were entering the battery ran back.
Beside himself with terror Pierre jumped up and ran back to the battery, as to the only refuge from the horrors that surrounded him.
The French who had occupied the battery fled, and our troops shouting "Hurrah!" pursued them so far beyond the battery that it was difficult to call them back.
The prisoners were brought down from the battery and among them was a wounded French general, whom the officers surrounded.
Toward two o'clock the regiment, having already lost more than two hundred men, was moved forward into a trampled oatfield in the gap between Semenovsk and the Knoll Battery, where thousands of men perished that day and on which an intense, concentrated fire from several hundred enemy guns was directed between one and two o'clock.
A battery of artillery was passing in front of the regiment.
Toward the end of the battle of Borodino, Pierre, having run down from Raevski's battery a second time, made his way through a gully to Knyazkovo with a crowd of soldiers, reached the dressing station, and seeing blood and hearing cries and groans hurried on, still entangled in the crowds of soldiers.
They, the soldiers at the battery, Prince Andrew killed... that old man...
All I do is pull the battery and store the old gal together with half my gear and the next summer she's as raring and ready as I am.
Deidre dug through her purse as she walked and pulled out her cell, thrilled to see she had battery power.
Christ, it tastes like battery acid.
Later, while attempting to utilize the gas for the production of electricity by means of a Grove gas battery, he noticed that the carbon monoxide contained in it combined with nickel.
Number of stations, the sending battery is sometimes divided among them in order to give greater uniformity of current along the line.
When the local battery is coils.
The result is that the armature of the relay is attracted, and currents are sent through the sounder from the local battery, producing the signals from the distant station.
Owing to the variable illumination of the selenium thus produced, the resistance of the latter, and therefore the intensity of the current sent through the line to the receiving station by the battery, will be altered accordingly.
Having ridden round the whole line from right flank to left, Prince Andrew made his way up to the battery from which the staff officer had told him the whole field could be seen.
His eyes ran rapidly over the wide space, but he only saw that the hitherto motionless masses of the French now swayed and that there really was a battery to their left.
And the solar battery farther back.