#### Measurement of an Electric Current

Calculating the value of an Electric Current into three way-

**1.** According to the basic **definition**, an electrical current is measured by the electrical charge (q) is flowing through any cross section area of conductor in time (t).

I = ( q / t ) Coulomb/Sec or Ampere

**2.** And (n) number of free electrons are passing through conductor in time (t). From the number of flowing charge particle and time, current is measured by

I = [( n * e ) / t ] Ampere

Where, e = -1.6*10^{-19 }Coulomb

**3.** According to the Ohm’s Law, an electric current is calculated by the voltage (V) and resistance (R).

I = ( V / R ) Ampere

From this above current calculator, you can easily find out the value.