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What is the relative density of the electrolyte in the fully charged state?
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∙ 15y ago
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∙ 15y ago
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Should a fully automatic 36 volt golf cart charger shut off when it's fully charged?
Yes, it should shut off when the batteries are fully charged. If not it is either a very old charger or it is defective. You do not want to overcharge the batteries so use a charger that shuts off automatically.
What is the relatice density of fully saturated air?
For air to be saturated air it must contain the maximum amount of water vapor it can hold at a particular temperature. Relative humidity is the amount of water vapor in the air and to be fully saturated must be 100%.
How can you tell when the Gioteck headset EX-02 for the PS3 is charged or when it is charging?
If charging charging, the side with the power button should light up red. When fully charged, it will light up blue.
How can you tell if a material is less dense then water?
Density is mass per unit volume, so if you know an object's mass and the space it occupies, then you can calculate its density. If you had a scale, you could weigh the object to determine its mass. (Note that mass is not the same as weight, but the two are closely related insofar as we use weight to determine mass.) You could then carefully submerge it completely in water to determine how much water it displaced. That would tell you its volume. You would then divide the mass by the volume to get its density. But what if you don't have a scale? Can you still determine its density? I think you can. Place a known quantity of water in a graduated container. Carefully place the object in the container and note the change in the water level. Subtract the new water level form the old. That is the amount of water displaced by the object, which should be floating since it's less dense than the water. The weight of the water displaced by the object is equal to the buoyant force pushing up on the object. What does this tell us? Well, since the object floats, we know that the buoyant force is equal (but opposite) to the weight of the object. In other words, if we know the magnitude of the buoyant force, we know the object's weight (and therefore its mass)! Now, you can divide its mass by its volume, which you determined earlier by fully submerging it. Determine how much water is displaced by the floating object. Then carefully fully submerge the object and record how much water is displaced. If you divide the first number by the second, you will know its relative density compared to the density of water! If the floating object displaces 100 ml of water and the fully submerged object displaces 150 ml, then the relative density is 100/150 = 0.667. Since the density of water is 1.00 g/cm3, that means the density of the object is 0.667 g/cm3.
How do the hydrometer work?
iT MEASURES SPECIFIC GRAVITY of liquids. ( differential balances called a Joly balance to name one type are used with solid matter. There are different types for measuring aquarium water density ( l.025 is USN grade saline) absolutely pure water woud be l.o as all Sg"s are measured in reference to water. There are different types, some have simplified scales. a type used by motorists and garage men to check battery electrolyte balance ( which was done with the motor switched off)- worked on the same principle but had four small sized balls. if all four balls went to the top of the sight glass, it would indicated the battery was fully charged- or more accurately the water density was that prescribed for a fully charged battery .( this test was conducted with the engine not running, so it does not run the battery down, so to speak. There are all kinds of Hydrometers. I can imagine specialized ones were used in the Battery room of Submarines- an all-important function. The type I just described is sometimes, and possibly incorrectly, called a Wassermann Hydrometer from the 4.0 ball reading- which is the same notation as the blood test for Syphilis. as Wassermann means Waterman in German, there may be some connection.
What are indications that lead acid battery is fully charged?
There are two measures, cell voltage and specific gravity of the electrolyte. Cell voltage is the simplest to measure. For most automotive, flooded cell (having liquid electrolyte) batteries, 12.6 volts is considered full charge, although it is typical to have 13 volts or a bit over. The specific gravity of a fully charged battery, measured with a hydrometer, is 1.265.
A dry battery and a wet battery and ...?
To put simply a "dry" battery is one that does not have any electrolyte (acid)... as such a dry charged battery is one in which the plate/cells of the battery are fully charged but will need to add the acid at the end user side before the battery is activated.The Wet battery, is one that comes from the factory/production side fully charged and ready to use (with the acid inside).Wrong. Both wet and dry batteries contain an electrolyte, but in the dry battery the electrolyte is absorbed into a solid material forming a damp paste. The dry battery is not really dry, its actually damp. The important difference is that the liquid electrolyte in a wet battery can spill and the damp paste electrolyte in the dry battery can't.Lead-acid batteries are commonly shipped and sold without the electrolyte as this simplifies shipment and extends shelf life in the store. But they are still wet batteries as they cannot function until the electrolyte is added. True dry batteries need nothing added to function.
Does your havoc heli have to be fully charged so it works right?
No, but it will work better if it is fully charged.
When an automotive battery is fully charged the sulfric acid and water mixture will have a specific gravity of about?
When a battery is fully charged, the amount of sulfuric acid mixed with the water is sufficient to give a specific gravity of about 1.3. The answer is C. I found this on Page 78 of the Mechanics Study Unit of Physical Science (Penn Foster). One of the uses of a hydrometer is to measure the condition of electrolyte solution in a storage battery of the type used in a car. When a battery is fully charged, the amount of sulfuric gravity of about 1.3.
How do you know when the spynet video watch is fully charged?
When it is charging the screen reads: Battery Charging. When it is fully charged it reads: Battery Charged.
What are typical voltage for fully charged and half charged batteries?
A fully charged 12 volt automotive battery should have 12.68 volts.
What is a component of a battery?
The negative electrode supplies electrons to the external circuit (or load) during discharge. In a fully charged lead-acid storage battery the negative electrode is composed of sponge lead (Pb). The positive electrode accepts electrons from the load during discharge. In a fully charged lead-acid battery the positive electrode is composed of lead dioxide (PbO2 ). It should be noted that the electrodes in a battery must be of dissimilar materials or the cell will not be able to develop an electrical potential and thus conduct electrical current. The electrolyte completes the internal circuit in the battery by supplying ions to the positive and negative electrodes. Dilute sulfuric acid (H2 SO4 ) is the electrolyte in lead-acid batteries. In a fully charged lead-acid battery, the electrolyte is approximately 25% sulfuric acid and 75% water.
What is a charged body?
A charged body is a body that was fully charged that can either positively or negatively charged.
Do new car batteries come fully charged?
Not fully, but these days come more than half charged, yes.
Is there any current between two fully charged capacitors?
as far i think,there is no current flowing between two fully charged capacitor.current flow in a capacitor happens until it gets fully charged.if it is fully charged then there is no lack of potential,so no current flow.
How is density used to determine if your car battery is good?
The electrolyte in a car battery is sulfuric acid, diluted with water. The density of the acid when fully charged is 1.265g/cm3. The chemical process, as the battery is discharged, makes the acid weaker and it becomes less dense. Down to 1.120g/cm3 when below 11volts.Checking the acid density will give you an idea of the state of charge.There are 6 cells in a 12v car battery. The charge of each cell should be the same. If the density is significantly different between cells, then that would indicate a fault in that cell and the battery is useless. Faulty cells may have distorted and shorted plates which would stop it being charged and show up with a different density than the other cells.
Is fully charged laptop heavy?
Laptops that's battery is fully charged does not weigh any more or less than one that's battery is not fully charged. If there is a difference, it would be so small you would not be able to tell.
