Dimensional formula of electrostatic force constant, Electrostatic

The dimensional formula of "Moment of force" is

The dimensional formula of a pseudo force is

In an electrostatic precipitator,

Dimensional formula for electromotive force is same as that for

The dimensional formula for stefan's constant 's' is

What is the dimensional formula of gravitational constant ?

What is the dimensional formula of gravitational constant ?

The coulomb electrostatic force is defined for

In coulomb's law, on what factors does the value of electrostatic force constant K depend ?

If E is the electric field intensity of an electrostatic field, then the electrostatic energy density is proportional to