Specific gravity of the electrolyte in the lead acid cell or battery (assuming that the battery is not of the sealed type) is often used as a measure of its STATE OF CHARGE.
Sure we can do the same with a multimeter but the above method is more accurate.
Don't no
liquid electrolyte solution with water and sulfuric acid.
Defect in a simple cell: In a simple cell current cannot be produced for long time and Its is not easy to carry from one place to other because liquid electrolyte (dilute sulfuric acid) is used in it. exacted from sir, Supran Acharya
It depends on what type of cells you're talking about. Assuming that you are talking about humans, the process is called cellular respiration. The first step is glycolysis, where glucose is split into two molecules of pyruvic acid. This occurs in the cytoplasm of the cell. This pyruvic acid then enters the mitochondria of the cell and goes through a process called the Kreb's cycle (or sometimes the Citric Acid cycle.) The energy is taken from the pyruvic acid and passed on to other molecules (NADH+H+, fADH2). These molecules then enter the final step of the respiration process, the electron transport chain. The energy passes through a series of proteins, drawn by the electronegativity of Oxygen. Ultimately, the energy is packed into a molecule called ATP (Adenosine Triphosphate) and this is the primary source of energy for cellular functions.
That depends on the chemistry:carbon-zinc or alkaline: 1.5Vnickel-cadmium or nickel-metal hydride: 1.2Vzinc-nickel: 1.6Vlead acid gell: 2Vlithium ion: 3V
State of Charge
Rate of Discharge
rate of discharge
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.
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'Lead-acid' batteries, sometimes called 'wet' batteries, have lead plates and liquid sulfuric acid inside. As a cell charges up, the specific gravity of the acid increases, and as it discharges, the specific gravity of the acid decreases. So, measuring the specific gravity of the liquid in the cell is a quick and easy way to tell how fully charged the cell is. Anybody who owns and uses some 'wet' batteries also owns a hydrometer ... a gadget that measures the specific gravity (or density) of liquids. The most familiar type looks like a turkey baster, with a little glass glob inside that looks like a miniature thermometer and has numbers marked on it. To use this hydrometer, you squeeze the rubber bulb on top, stick the snout into a liquid, release the rubber bulb which draws some of the liquid up inside, and the little mini-thermometer inside floats in the liquid ... part of it above the surface and part of it below. The higher the specific gravity of the liquid is, the higher this little thing floats. So you look in on it, and read the number marked on it right at the surface of the liquid, and that's the specific gravity. If you're doing this, then you know what number you want to see, and you know whether the number you see means charged, discharged, or something in between. As I recall back in the day, I used to see specific gravity somewhere around 1.20 - 1.25 in each cell of a 48-v battery that was properly floated and equalized on its rectifier. But to be honest, that was a while ago. The constants of nature that define the elementary charge and the Atomic Mass Unit could well have changed since then.
A battery hydrometer which measures the specific gravity (relative density) of liquids, to determine the concentration of sulfuric acid in each cell.
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ribosomes
No.AnswerPresumably, you mean 'specific gravity' or, as it is known these days, 'relative density'? If so, the relative density of a lead-acid cell or battery is, indeed, a guide to that battery's state of charge -that's why we use a hydrometer to check the condition of a lead-acid battery. However, it would be wrong to say that the relative density of a lead-acid battery 'effects' the voltage -it merely is a guide to the state of charge. (Actually, it's the state of a battery's charge that affects its relative density.)
Cells are typically measured in micrometers
Cell size is measured in nanometers (nm) using a calibrated scale on the microscope objective.