1. Tardigrade
  2. Question
  3. Physics
  4. The electric intensity and electric potential at a certain distance r from a point charge in air are 150 V/ m and 300 V respectively. Find the distance r

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The electric intensity and electric potential at a certain distance $ r $ from a point charge in air are $ 150 V/ m $ and $ 300\, V $ respectively. Find the distance $ r $

J & K CETJ & K CET 2017Electrostatic Potential and Capacitance

Solution:

$E(r)=150\,V\,m^{-1}$,
$V(r)=300\,V$,
$r=?$
$V(r)=E (r) r$
$\Rightarrow r=\frac{V(r)}{E(r)}$
$=\frac{300}{150} m$
$=2 m$