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By Shailendra Singh
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Updated on 5 Mar 2025, 17:39 IST
Millicoulombs and coulombs are units of electric charge, which is a fundamental property of particles that carry an electric charge. The SI unit of electric charge is the coulomb (C), and the millicoulomb (mC) is a subunit of the coulomb.
1 Coulomb (C) is defined as the amount of electric charge transported by a current of one ampere (A) in one second. In other words, if a current of 1 ampere flows through a conductor for 1 second, it carries a charge of 1 coulomb.
1 Millicoulomb (mC) is equal to one-thousandth (1/1000) of a coulomb. It’s a smaller unit of charge and is often used to express smaller amounts of charge in practical situations.
1C = 1000mC
or
1mC = 0.001C
Q(C) = Q(mC) / 1000
Example – Convert 3 millicoulombs to coulombs:
Ans. Q(C) = 3mC / 1000 = 0.003C
| Charge (millicoulomb) | Charge (coulomb) |
| 0 mC | 0 C |
| 1 mC | 0.001 C |
| 10 mC | 0.01 C |
| 100 mC | 0.1 C |
| 1000 mC | 1 C |
| 10000 mC | 10 C |
| 100000 mC | 100 C |
| 1000000 mC | 1000 C |
To convert milliCoulombs (mC) to Coulombs (C), divide the value in milliCoulombs by 1000. It can be expressed as: 1 C = 1000 mC.
1 milliCoulomb (1 mC) is a unit of electric charge equal to one thousandth of a Coulomb (1/1000 C). It's used to quantify small amounts of charge.
1 microCoulomb (1 μC) is equal to one millionth (10^-6) of a Coulomb. It's often used to describe even smaller amounts of electric charge.
The formula for 1 Coulomb is not a mathematical formula, but rather a definition based on the International System of Units (SI). It's defined as the amount of electric charge carried by a current of 1 Ampere flowing for 1 second.
You don't need to calculate 1 Coulomb charge; it's a fundamental unit defined by the SI system. It's the amount of charge carried by 1 Ampere of current flowing for 1 second.
The SI unit of 1 Coulomb is denoted as C, named after the French physicist Charles-Augustin de Coulomb, and it's the standard unit for measuring electric charge.
1.0 Coulomb of charge represents a fundamental unit of electric charge in the SI system. It's the charge carried by a current of 1 Ampere flowing for 1 second.
The charge of a single electron is approximately -1.602 x 10^-19 Coulombs. Therefore, 1 Coulomb of charge would be equivalent to about 6.242 x 10^18 electrons (absolute value).
