Calculate the electric field intensity at apoint 1m away from a charge of 1C in air.

Explanation

Given, `q=1C,r=1m,k=9xx10^(9)"N-m"^(2)//C^(2),E=?`
`:.E=k(q)/(r^(2))=9xx10^(9)xx(1)/(1^(2))`
`E=9xx10^(9)" N/C"`