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No, Terminal voltage of a battery can't be zero. For example, if my mobile's battery is at low charge. It is showing only one point of charge on screen, but there will be no fluctuation on its screen, all the other features like audio, video, display will remain same unless it will become fully out of charge. Charge could be zero but the voltage can't be zero.

Well, actually the terminal voltage of a battery can be zero, but only when the battery is totally dead and unable to take a charge (if it was a rechargeable type battery). At this point it must be disposed of.

One exception is wet cell batteries (like lead acid), if the liquid electrolyte is removed the terminal voltage goes to zero but the battery is still good and can be restored to normal operation by refilling it with electrolyte. In fact wet cell batteries are often sold fully charged but with no electrolyte and their terminal voltage is thus zero on the store shelf until the salesman fills them with electrolyte.

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Why negative voltage is used in BTS in GSM system?

Because 2 terminal comes out from the battery and through red wire we ground the +ive terminal so that possibility of noise interference will get zero....noise occur only in the +ive terminal.....thats why we use -ive voltage.


What is the difference between the terminal voltage and the source voltage?

the source voltage is the voltage that measured exactly after the voltage source , but the terminal voltage is the voltage that measured in the load terminals , which equal to the source voltage minus the drop voltage on the transmission line .


If a 12v car battery has 0.04ohm internal resistance what is the battery terminal voltage when the battery delivers 40A?

011.1


What is the purpose of the zero ohms adjust?

To adjust for the changing (dropping) voltage of the internal battery, so you can still get accurate readings. When you can no longer adjust to zero, replace the battery(s).


Why terminal voltage is less than emf?

The terminal voltage of a battery is less than its electromotive force (emf) due to internal resistance within the battery. When a load is connected, current flows, causing a voltage drop across this internal resistance, which reduces the voltage available at the terminals. This phenomenon is particularly noticeable under high load conditions, where the current is greater, leading to a more significant drop. Thus, the terminal voltage reflects the actual voltage available to the external circuit, which is always less than the emf when current is drawn.

Related Questions

What is the voltage in a circuit?

zero That's not always true. If you have a 12 volt battery not connected to anything and you measure the terminal voltage, it will be 12 volts.


Why negative voltage is used in BTS in GSM system?

Because 2 terminal comes out from the battery and through red wire we ground the +ive terminal so that possibility of noise interference will get zero....noise occur only in the +ive terminal.....thats why we use -ive voltage.


What is open circuit characteristic?

The terminal voltage is equal to the supply voltage and there is zero current.


How many volts does a LR41 battery have?

This is an alkaline battery and will have a typical terminal voltage of 1.5v.


Can the terminal voltage of a battery be larger than its emf?

the voltage of a battery could be larger than the emf if you are to charge the battery, in that case V=E+Ir .


What is the difference between the terminal voltage and the source voltage?

the source voltage is the voltage that measured exactly after the voltage source , but the terminal voltage is the voltage that measured in the load terminals , which equal to the source voltage minus the drop voltage on the transmission line .


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.


Why does a voltmeter display A reeded of 0 V when both of these probes are toasted the same in a battery?

A voltmeter displays 0 V when both probes are connected to the same terminal of a battery because there is no potential difference between the two points. Since both probes are at the same voltage level, the voltmeter reads zero, indicating that there is no voltage to measure. Essentially, it measures the difference in electric potential, and with both probes on the same terminal, that difference is zero.


How can I connect batteries to increase voltage?

To increase voltage, you can connect batteries in series. This involves connecting the positive terminal of one battery to the negative terminal of another battery. The total voltage will be the sum of the individual battery voltages. Make sure the batteries are of the same type and capacity for best results.


How do you do a battery voltage test using a fluke 77 IV series?

To perform a battery voltage test using a Fluke 77 IV multimeter, set the multimeter to the DC voltage measurement mode (V with a straight line). Connect the red probe to the positive terminal of the battery and the black probe to the negative terminal. Read the voltage displayed on the screen; it should be close to the battery's rated voltage if the battery is healthy. If the voltage is significantly lower, the battery may need recharging or replacement.


If a 12v car battery has 0.04ohm internal resistance what is the battery terminal voltage when the battery delivers 40A?

011.1


How can a capacitor be charged using a battery charger?

To charge a capacitor using a battery charger, you connect the positive terminal of the battery charger to the positive terminal of the capacitor, and the negative terminal of the battery charger to the negative terminal of the capacitor. The battery charger will then supply a voltage to the capacitor, causing it to store electrical energy.