Question

Fill in the blanks (a) .....................electric lines of force are passing through 1 coulomb charge.

Answer 1

On a standard basis the lines of force for a coulomb of charge are assumed to be

1 / Eo

where Eo is the permittivity of vacuum, its value is 8.854 187 817...* 10^(-12) farads per metre.

Actually electric field lines are imaginary lines. So there can be any number of lines. These lines are drawn to visualize the strength of the electric field in a region. They are used to show the direction in which the electric forces act and how their strength changes with distance.