Work Done in Carrying a Charge The potential difference between two points is 20 V. How much work will be done in carrying a charge of `400muC` from one point to the other ?

Explanation

We know that,
electrostatic potential `=("work done")/("charge")`
`:.` Wrok done = Electrostatic potential `xx` Charge
or `W=V xx q` . . . (i)
Given, `V=20V`
and `q=400muC=400xx10^(-6)C`
Putting these values in Eq. (i), we get
`W=20xx400xx10^(-6)=8xx10^(-3)J`