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When a battery runs out does the battery voltage increase decrease or stay the same?
Wiki User
∙ 14y ago
It should decrease
Wiki User
∙ 14y ago
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Why does voltage increase with current with separate excitation?
More current in the field coils means a stronger magnetic field for the armature to rotate in. This causes the output voltage for a generator to increase. For a motor, more magnetic field means that the supply voltage can be matched at a slower armature rotation speed, so the motor runs more slowly but can supply more torque.
What is voltage drop when utilized with cable runs?
A: ANY CABLE will have a definite impedance and if current flow there is going to be a definite voltage drop because of it
What does Wh and mAH mean on a battery?
The battery can supply an amount of electric charge measured in milliampere-hours, which expresses its capacity to supply a load of a number of milliamps for a number of hours. The idea is that if the load current is high, the battery lasts for less time, so the current times the time makes good measure of the capacity. It is also common practice to measure larger batteries in amp-hours, and there are 1000 mAH in one AH. This measure is a nominal one because in practice a high current load will give a lower AH capacity than when the load is small. Multiplying the voltage by the AH capacity gives the watt-hour capacity, which measures how much energy the battery can supply. This measures is also only a nominal only because as the battery runs down its voltage reduces.
Why do the time on my computer changes for no reason?
The reason is your cmos battery is about to die. All desktop PCs use a small lithium battery, similar to those used by hand-held calculators to keep time and date info. Once this battery runs low on voltage, your date and time will be shown incorrectly. The solution: unplug your PC, open the case and carefully extract the battery (use a small flashlight). Buy a new one of the same number (cr2032, cr2025, etc.) and install it the right way. Don't worry, it will fit only one way. Now turn your PC on and set the time and date and that's it, no problem with that for a good few years. Hope this helps.
How many hours will a raspberry pi on 5 watts last on 5000mAH?
The Raspbery Pi runs on a 5 volt power supply. 5 watts at 5 volts is 1 ampere. 1 ampere is 1000 milliamperes. This would seem to indicate that a battery pack rated at 5000mAH (5000 milliamperes per hour) should run for 5 hours with a load that is drawing 1 ampere. However, this presupposes that the battery is delivering a potential difference of 5 volts. Since the Raspberry Pi contains a 5 volt linear regulator on it's power input rail, the battery has to deliver at least 6.5 volts for the Raspberry Pi to function correctly (to compensate for the voltage drop inherent in any linear regulator.) Also, if the battery's voltage is significantly higher than this, it would drain much faster and possibly damage the Raspberry Pi board. Look up Ohm's Law for more information on these calculations.
Could you run your home on car battery?
No, the battery is DC voltage and your home runs on AC.
What keeps a battery on a motorcycle running?
The battery is charged by a generator that runs through a regulator-rectifier. The generator outputs AC voltage and the rectifier converts the voltage to DC. The generator is normally mounted inside the engine on the flywheel.
Will a 1.55 volt battery damage something that runs on 1.5 volts?
No, that type of equipment has to be designed to work with a standard 1.5 v battery, which has a voltage about 0.9 to 1.6.
Can you power house off car battery?
No, batteries put out DC voltage and you home runs on AC voltage. Even with a converter there is only enough power in a battery to run a few lights, TV, or a small appliance for a very short period of time.
How can you convert your syphon pump that runs on a 12v car battery to run on normal household batteries?
I have no idea what a normal household battery is. Generally you would have to match the current and voltage of the car battery and then you have the issue of how long the battery can sustain the current, or ampere hours.
What is the function of magneto coil?
magneto coil is replacement supply voltage for lights and others when bike runs, it also acts as a charger for battery.
What does it mean if your 93 Pontiac Sunbird le runs fine for about a week and then fries your battery?
Check the voltage level from the alternator. Overvoltage is about the only thing that can "fry" a battery. If the voltage is much above 14.5 V, the regulator INSIDE the alternator has failed. The only choice is to replace the alternator.
1996 Grand Cherokee 6 cyc Will not idle when started cold Runs normally when warmed up Is it a bad sensor?
I took the vehicle to the dealer service department. It turns out the vehicle battery was not providing the correct voltage. Once the battery was replaced, vehicle is running properly again. In the future I will check battery condition / voltage first.
Can a faulty alternator drain a new battery?
It can, though it is unlikely -- the alternator and the voltage regulator would both have to be faulty. A faulty alternator will not charge a battery, though, so it may seem normal until the charge put into the battery at the store runs out.
Why does voltage increase with current with separate excitation?
More current in the field coils means a stronger magnetic field for the armature to rotate in. This causes the output voltage for a generator to increase. For a motor, more magnetic field means that the supply voltage can be matched at a slower armature rotation speed, so the motor runs more slowly but can supply more torque.
Erik often runs his laptop computer on battery power He knows that the longer he runs on battery power the less power the battery will have?
The amount of power in the battery is a function of the time Erik runs the computer on the battery.
Why does the fan on ac change speeds as engine rmps increase or decrease?
Your engine runs the a/c, they share electrical power, when the rpms go up so does the a/c fan.
