Question

At what distance from an electric charge of 10 coulumb, the electric field intensity be zero?

Answer 1

Electrical charge has the unit of coulombs (C), and time is measured in seconds (s). A coulomb-per-second is an ampere, which is the unit for electric current. Electrons are charge carriers because they carry electrical charge. Roughly 6.24 x 1018 electrons is the equivalent of 1 coulomb of charge.

To find
10 coulmb charge=6.24 x 10power18×10

therefore C= 62.4×10power18