Minimum Voltage and Current for Electric Arc at One Inch Distance

In summary, the minimum voltage and current required for an electric arc to form at a distance of one inch is highly dependent on the type of gas being used, as well as the atmospheric pressure and temperature. Generally, a minimum voltage of 3,000 volts and a minimum current of 5 milliamps are needed for an electric arc to form. However, this varies for different gases, with some requiring much higher voltages and currents. Additionally, factors such as the distance between electrodes and the presence of impurities in the gas can also affect the minimum voltage and current needed for an electric arc to form.
  • #1
force
What would be the minimum direct or alternating voltage and current needed to produce an electric arc in air at a distance of one inch ?
 
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  • #2
force said:
What would be the minimum direct or alternating voltage and current needed to produce an electric arc in air at a distance of one inch ?

The ballpark figure that is often quoted is of the order of 10^6 V/m. So you can scale that for whatever distance you want.

http://hypertextbook.com/facts/2000/AliceHong.shtml

Zz.
 
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  • #3


The minimum voltage and current required to produce an electric arc at a distance of one inch in air will depend on a variety of factors, such as the atmospheric conditions and the properties of the materials involved. Generally, a minimum voltage of around 3000 volts and a minimum current of 30 milliamps are needed to create an electric arc in air at a distance of one inch. However, this can vary greatly and it is important to carefully consider all relevant factors when attempting to produce an electric arc. Additionally, it is important to note that working with high voltage and current can be dangerous and should only be done by trained professionals with proper safety precautions in place.
 

1. What is the minimum voltage required for an electric arc at one inch distance?

The minimum voltage required for an electric arc at one inch distance varies depending on several factors such as the type of gas or medium between the electrodes, electrode material, and atmospheric conditions. However, on average, a minimum voltage of 3,000-5,000 volts is required for an electric arc to form at one inch distance.

2. What is the minimum current needed for an electric arc at one inch distance?

Similar to the minimum voltage, the minimum current needed for an electric arc at one inch distance also varies depending on the factors mentioned above. On average, a minimum current of 5-10 milliamperes is needed for an electric arc to form at one inch distance.

3. Can the minimum voltage and current for an electric arc at one inch distance be calculated?

Yes, the minimum voltage and current for an electric arc at one inch distance can be calculated using mathematical equations that take into account the factors mentioned earlier. However, it is essential to note that these calculations are estimates and may not be accurate in real-world situations.

4. Why is it important to know the minimum voltage and current for an electric arc at one inch distance?

Knowing the minimum voltage and current for an electric arc at one inch distance is crucial for safety purposes. It helps in determining the minimum distance that should be maintained between live electrical equipment and other objects to prevent electric arcs and potential hazards.

5. How can the minimum voltage and current for an electric arc at one inch distance be increased?

The minimum voltage and current for an electric arc at one inch distance can be increased by adjusting the factors that affect them. For example, using a different type of gas or medium, using electrodes made of different materials, or altering the atmospheric conditions can increase the minimum voltage and current needed for an electric arc to form at one inch distance.

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