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Single conversion
To convert from Ampere (A) to Megaampere (MA), use the following formula:
Let's convert 5 Ampere (A) to Megaampere (MA).
Using the formula:
Therefore, 5 Ampere (A) is equal to Megaampere (MA).
Here are some quick reference conversions from Ampere (A) to Megaampere (MA):
| Amperes | Megaamperes |
|---|---|
| 0.000001 A | MA |
| 0.001 A | MA |
| 0.1 A | MA |
| 1 A | MA |
| 2 A | MA |
| 3 A | MA |
| 4 A | MA |
| 5 A | MA |
| 6 A | MA |
| 7 A | MA |
| 8 A | MA |
| 9 A | MA |
| 10 A | MA |
| 20 A | MA |
| 30 A | MA |
| 40 A | MA |
| 50 A | MA |
| 100 A | MA |
| 1000 A | MA |
| 10000 A | MA |
For all Current converters, choose units using the From/To dropdowns above.
An Ampere, often shortened to "amp" or A, is the standard base unit used to measure electric current.
It's part of the International System of Units (SI), which is the modern form of the metric system.
In practical terms, the Ampere measures the rate of flow of electric charge, or the amount of electrical current.
A common analogy is to compare electricity to water flowing through a pipe. In this scenario, voltage is the water pressure, while the Ampere (or "amp") represents the volume of water flowing past a certain point per second.
A higher amperage means more electrons are flowing.
This is why high-power devices like space heaters, hair dryers, or power tools require a much higher amp rating (e.g., 10-15 amps). In contrast, small devices like LED lights or phone chargers use much less (often 1-2 amps).
While the practical definition is most straightforward, the official scientific definition was updated in 2019.
Today, the Ampere is defined based on the elementary charge (e), which is the electric charge of a single proton. This value is fixed at exactly 1.602176634 × 10-19 Coulombs.
This modern definition ties the Ampere directly to a fundamental constant of nature, ensuring its stability and precision.
An Ampere represents the flow of one Coulomb of charge (approximately 6.242 x 1018 elementary charges) passing a point in one second.
The Ampere is named in honor of André-Marie Ampère (1775-1836), a renowned French physicist and mathematician.
He is widely considered one of the principal founders of the science of electromagnetism, which he termed "electrodynamics."
His most famous contribution is Ampère's circuital law, which mathematically describes the magnetic force between two electrical currents. Naming the unit of current after him recognizes his foundational work in understanding the relationship between electricity and magnetism.
A megaampere (MA) is a unit of measurement for electrical current in the International System of Units (SI).
It is equal to one million amperes (106 A). The plural form is megaamperes.
Within the International System of Units (SI), the ampere (A) is the base unit for electric current. The prefix "mega" denotes a factor of one million (106).
Therefore, one megaampere is precisely equal to 1,000,000 amperes.
This unit provides a convenient way for engineers and scientists to express and calculate tremendous current values without using lengthy scientific notation.
A megaampere represents a massive amount of electrical current, typically seen only in powerful natural phenomena or advanced technology.
The most dramatic natural example of megaampere-scale currents is lightning.
This showcases the immense energy involved in atmospheric electrical discharges.
Megaampere-level currents are critical in cutting-edge scientific research and heavy industrial processes.
Fields like nuclear fusion, particularly in devices like tokamaks, and high-energy plasma physics experiments rely on generating and controlling currents measured in megaamperes.
This massive flow of electricity is necessary to create the extreme magnetic fields and temperatures required to control matter at the atomic level.