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Can the terminal voltage of a battery be larger than its emf?
OsamaAnsari
the voltage of a battery could be larger than the emf if you are to charge the battery, in that case V=E+Ir .
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∙ 11y ago
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Does a car battery have smaller or larger voltage than a flashlight battery has?
Larger.
Why some time the terminal voltage of a battery increases more than its rating?
When the alternator starts charging the battery voltage will increase about two volts to charge the battery.
How are a battery and voltage related?
The word 'battery' strictly means a series of 'cells' joined together to form a power source. Modern parlance usually considers individual cells as batteries.Each cell in a battery has a terminal voltage determined by the chemical properties of the battery. Alkaline cells have a terminal voltage of 1.5 volts. Nickel cadmium have a voltage of 1.25v and lead/acid cells have a voltage of 2.0v. etc.Voltages larger than the individual cells are achieved by joining the cells in series.For example a typical car battery is 12v. This is made by joining 6 lead acid, 2v cells, together in seriesThe relation is; number of cells, multiplied by the terminal voltage of each cell.
How does the potato help in identifying the positive terminal of the battery?
The positive terminal is slightly larger than the negative terminal. I never heard of this potato deal.
What is a positive terminal on a battery?
There are 2 battery terminals. A positive or hot and a negative or ground. The positive is slightly larger than the negative.
What side is the negative on a battery in a car?
It will vary from car to car, but the neg is usually black, and has a "-" sign. Normally the positive terminal is larger than the negative terminal.
Does a D cell battery have more voltage than an A cell battery?
this question is missing information and therefor makes no sense
Does a different size battery change the amount of power?
The physical size of a battery will affect how long it lasts. If an equal charge is drawn from two batteries of a different size, the larger battery can last longer and this is why flash light batteries are larger than those of a TV remote controller.
Can a 0.9V 400MA solar panel be used to charge 2 AA batteries?
To charge a battery, the charger voltage must be higher than the battery voltage. If a AA battery (or any other) has a normal voltage of 1.2V the charger voltage must be at least 1.2V. The type of voltage supply and its current capability is immaterial. No, the charging voltage have to be larger than the battery voltage, to charge 2 AA batteries, that is 3 volt if connected in series, so a voltage of at least 4 volt is needed
Does a 9 volt battery has more voltage than a d battery?
yes more voltage
How does a battery disconnect work?
A "battery disconnect" is nothing more than a special SWITCH designed and manufactured to be able to carry very large [heavy] electrical current. The one with which I'm familiar mounts on the positive battery terminal after the cable has been removed, and then the cable connector is attached to the output terminal of the disconnect switch. This switch allows one to totally and completely "kill" the battery voltage to the auto circuits, without having to use a wrench to loosen a battery terminal clamp and manually "wrestle" it from the terminal.
How do you check a battery is charged?
Take a DC volt meter and check the voltage at the battery. Red probe on positive + terminal and Black probe on negative - terminal. If it reads 12.6 volts it is fully charged. 12.4 and it is 75%, 12.2 and it is 50%, 12.0 and it is 25% charged. Less than 12 volts and it is considered a dead battery.
