Two point charges placed at a distance 'r' in air exert a force 'F'. The distance at which they exert same force when placed in a certain medium(dielectric constant K) is _______
A. rK
B. r/K
C. r K
D. r √K
Answer:C
Two point charges placed at a distance 'r' in air exert a force 'F'. The distance at which they exert same force when placed in a certain medium(dielectric constant K) is _______
A. rK B. r/K C. r K D. r √K