Question

1 coulomb is equal to 3*1000000000 stat coulomb proof

Answer 1

The statcoulomb or esu is the physical unit for electrical charges used in the cgs units. It is a derived unit given by
1 statcoulomb or esu = 0.1 A m / c ; where c is the speed of light.

This works out to be:

1 esu = 0.1 (C/s) * m / (299,792 m/s)

or 1 esu = 3.334564 x 10-10 C

or 1 C = 3.00×109 statC or esu,

Whie absolute coulomb defined as the amount of electric charge that crosses a surface in 1 second when a steady current of 1 absolute ampere is flowing across the surface.

1 absolute coulomb = 10 coulomb


1 absolute coulomb = 10 coulomb = 3×1000000000 statC