User login

6 + 2 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

The Value of coulomb's constant (K) in SI Units is:

9 x 109 Nm2C2

9 x 109 NC2m-2

9 x 109 N-1m2C2

9 x 109 Nm2C-2