What is the current found by finding the current in an equidistant region and dividing by n?

Options

A. RMS current
B. Average current
C. Instantaneous current
D. Total current

Explanation

Consider the below diagram.
Moment of the force F about point `A, tau_(1)=Fxxa` (anti-clockwise)
Moment of weight mg of the cube about point
`A, tau_(2)=mgxx(a)/(2)` (clockwise)

If cube will not exhibit motion, then `tau_(1)=tau_(2)`
`therefore Fxxa=mgxx(a)/(2)`
`therefore F=(mg)/(2)`
Cube will rotate only when `tau_(1)gttau_(2)`,
`Fxxagtmgxx(a)/(2)`
`therefore F=(mg)/(2)`
Normal force is acting at `(a)/(3)` from point A, then
`mgxx(a)/(3)=Fxxa` (For no motion)
`therefore F=(mg)/(3)`
When `F=(mg)/(4)` which is less than `(mg)/(3)`, there will be no motion.
`therefore` (a) `rarr` (ii), (b) `rarr` (iii), (c ) `rarr` (i), (d) `rarr` (iv)