OnlineCBT
Physics · Electrostatic Potential
हिन्दीWhat is the ratio of potentials at a distance \( r \) from a point charge versus at distance \( 2r \) from the same point charge?
Correct answer · Option 4
2 : 1
Explanation
Since \( V \propto \frac{1}{r} \), the ratio \( \frac{V(r)}{V(2r)} = \frac{2r}{r} = 2:1 \).
