COULOMB’S LAW CALCULATOR | ONLINE CALCULATION!

Coulomb’s Law allows us to calculate the electric force between two electric charges of the same or different sign, for this the value of the charges and the distance between them are needed. The value of the charges must always be entered in Coulomb (C) and the distances in meters (m) to obtain a correct result. Scientific notation can be used, for example to write 2.5×10 ^-9 C you must enter 2.5e-9 on the calculator

Coulomb’s Law states that the electric force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance separating them . This Law, which uses the electric force between charges calculator, can be written using the following equation F _E =Kq ₁ .q ₂ ​​/d ² , where K is a constant of value 9.0×10 ⁹ Nm ² /C ² .

EXAMPLES OF USING THE COULOMB’S LAW CALCULATOR

EXAMPLE 1

A charge of 5.6×10 ^-12 C is separated 5.0mm from another charge of value 3.0×10 ^-12 C How much is the electric force between the charges?

Solution:

The following data can be extracted from the letter

q1=5.6×10 ^-12 C

q2=3.0×10 ^-12 C

d=5.0mm

Before proceeding with the calculations, all the measurements must be written in the corresponding units, in this case the distance is in mm , and must always be written in m in this equation, therefore it must be converted taking into account that 1m is equal 1000mm. Making a rule of 3 we arrive at:

5.0mm ____ 0.005m

d=0.005m

After having all the data in their corresponding units, Coulomb’s Law must be applied to resolve the situation:

where K always has a value of 9.0×10 ⁹ Nm ² /C ² and it is not necessary to include it in the online calculator.

Taking this data to the calculator and it is obtained that the force between the charges is 4.048 × 10 ^-9 N