Obtain the unit of `epsilon_0` with the help of the formula.

What is the SI unit of epsilon_0 ?

The sum of the digits in the unit place of all numbers formed with the help of 3,4,5,6 taken all at a time is

What is unit of 1 // mu_0 epsilon_0 ?

Mention a product of human welfare obtained with the help of each one of the following microbes:

By stating assumptions made and sign conventions used, derive mirror formula in case of convex mirror with the help of labelled ray diagram.

What is the magnitude and unit of epsilon_0 ?