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Why does voltmeter have high internal resistance?
No, ammeters have a low internal resistance. This is so that when they are put in series with a circuit, they change the circuit's operating characteristics as little as possible.Contrast this with voltmeters, which do have a high internal resistance, and which are intended to be placed in parallel with the circuit they are measuring.Use the link below to the related question on why ammeters have a low internal resistance and read through that information to see why things are the way they are.
Automobile batteries use low or high internal resistance?
I think you are asking why is it necessary for an automobile battery to have low internal resistance. That is because the internal resistance of a battery limits the amount of current it will produce. Imagine connecting a wire from the plus side of the batter to the minus side. Then, the amount of current the battery produces is the voltage of the battery divided by its internal resistance. So, if you take a flashlight battery and connect a wire between the two terminals, it might get a little warm. If you take a car battery cannot a wire between the two terminals, the wire will probably melt! (Don't try this!) If you take a lithium ion battery from your computer and short the two terminals, the battery will catch on fire. (Computer companies build extra resistance into the batteries to help to prevent that. So, why do cars need low internal resistance batteries? They need lots of current to start those large gasoline engines turning. You car battery does a tremendous amount of work to start your engine (and remember, energy and work are the same in physics).
What will be the error if the intermal resistance of the voltmeteris is very high?
If the internal resistance of a voltmeter is very high, it can lead to minimal loading of the circuit being measured, which is generally desirable for accurate voltage readings. However, if the resistance is excessively high, it may also result in a longer response time or increased susceptibility to noise, potentially leading to inaccurate readings in certain conditions. This can cause the voltmeter to fail to reflect rapid changes in voltage accurately, particularly in dynamic circuits.
Where would you want to have a high resistance?
I would want to have high resistance in environments that require durability and longevity, such as in electrical components to prevent overheating and failures. High resistance is also desirable in materials used for insulation, ensuring safety and efficiency in various applications. Additionally, in physical fitness, high resistance training can enhance muscle strength and endurance, contributing to overall health.
Battery connected to high Resistance voltmeter the reading is 1.5V when it is shorted on a low resistance ammeter the current is 2.5A what is the emf and the internal resistance of the battery?
The Thevenin equivalent circuit of this battery is 1.5V and 0.6 ohms in series. A more exact answer cannot be given without knowing the actual resistance of the 2 meters (I assumed infinite for the voltmeter and zero for the ammeter, as would be for ideal meters).However I would NEVER attempt this test as you describe it, many types of batteries will explode like bombs when shorted (as they would be when an ammeter was placed across them)! The correct way to do this test safely is with just a voltmeter and an adjustable high wattage resistor.
Do meters usually have a high or low internal resistance?
It depends on the application. Voltmeters have a high internal resistance, while ammeters have a low internal resistance.
Do Dead batteries have high internal resistance?
yes, batteries have high internal resistance. The higher the resistance the lower power you get out of the batter. Therefore if you no power you have very high resistance.
Why does voltmeter have high internal resistance?
No, ammeters have a low internal resistance. This is so that when they are put in series with a circuit, they change the circuit's operating characteristics as little as possible.Contrast this with voltmeters, which do have a high internal resistance, and which are intended to be placed in parallel with the circuit they are measuring.Use the link below to the related question on why ammeters have a low internal resistance and read through that information to see why things are the way they are.
Automobile batteries use low or high internal resistance?
I think you are asking why is it necessary for an automobile battery to have low internal resistance. That is because the internal resistance of a battery limits the amount of current it will produce. Imagine connecting a wire from the plus side of the batter to the minus side. Then, the amount of current the battery produces is the voltage of the battery divided by its internal resistance. So, if you take a flashlight battery and connect a wire between the two terminals, it might get a little warm. If you take a car battery cannot a wire between the two terminals, the wire will probably melt! (Don't try this!) If you take a lithium ion battery from your computer and short the two terminals, the battery will catch on fire. (Computer companies build extra resistance into the batteries to help to prevent that. So, why do cars need low internal resistance batteries? They need lots of current to start those large gasoline engines turning. You car battery does a tremendous amount of work to start your engine (and remember, energy and work are the same in physics).
What causes a voltage drop on a 12 volt battery?
A voltage drop on a 12-volt battery can be caused by several factors, including high current draw from connected devices, internal resistance within the battery, or poor connections in the wiring. As the load increases, the battery struggles to maintain its voltage due to these resistive losses. Additionally, aging or sulfation of the battery plates can further increase internal resistance, leading to a more significant voltage drop. Regular maintenance and monitoring of battery health can help mitigate these issues.
What are the symptoms of a loose battery terminal?
A loose battery terminal will cause intermittent power supply, high resistance and heating. A high resistance will cause a voltage drop, as more current is drawn from it.
What is lost volts?
A battery is rated to supply a certain number of volts. However, it actually supplies less, because they are "lost" as the current has to get out of the battery in the first place.(The battery has internal resistance)The amount of lost volts depends on the current being drawn:The less resistance a circuit has, the more current is drawn, because it's easier to flow.Example:If the circuit has little resistance, it draws a large current and the battery's internal resistance causes more lost volts.If the circuit has high resistance, it draws a small current and there are fewer lost volts.This is why when you short-circuit a battery (give it hardly any resistance to go through) it heats up and may explode. A large current is drawn and all the volts are used by the battery's internal resistance.
What will be the error if the intermal resistance of the voltmeteris is very high?
If the internal resistance of a voltmeter is very high, it can lead to minimal loading of the circuit being measured, which is generally desirable for accurate voltage readings. However, if the resistance is excessively high, it may also result in a longer response time or increased susceptibility to noise, potentially leading to inaccurate readings in certain conditions. This can cause the voltmeter to fail to reflect rapid changes in voltage accurately, particularly in dynamic circuits.
When a battery is connected across a high resistance in parallel with a low resistance more power is dissapited in the low resistance Is this statement true or false?
true
Where would you want to have a high resistance?
I would want to have high resistance in environments that require durability and longevity, such as in electrical components to prevent overheating and failures. High resistance is also desirable in materials used for insulation, ensuring safety and efficiency in various applications. Additionally, in physical fitness, high resistance training can enhance muscle strength and endurance, contributing to overall health.
Battery connected to high Resistance voltmeter the reading is 1.5V when it is shorted on a low resistance ammeter the current is 2.5A what is the emf and the internal resistance of the battery?
The Thevenin equivalent circuit of this battery is 1.5V and 0.6 ohms in series. A more exact answer cannot be given without knowing the actual resistance of the 2 meters (I assumed infinite for the voltmeter and zero for the ammeter, as would be for ideal meters).However I would NEVER attempt this test as you describe it, many types of batteries will explode like bombs when shorted (as they would be when an ammeter was placed across them)! The correct way to do this test safely is with just a voltmeter and an adjustable high wattage resistor.
Why should you be the internal resistance of the very few Amitr?
ammeter connect in series in circuit to measure the current, if the Ammeter have a high resistance it would effect the voltage value because there will be a drop voltage over the internal resistance of the Ammeter, so we desgin the ammeters with very low resistance...
