No products in the cart.

The force between two point charges …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

The force between two point charges q1 and q2 separated by a distance " r" in vacuum is " F". At what distance between the charges will the force become " 8F" ?
  • 2 answers

Riya Rana 5 years, 4 months ago

When r' = r/2√2

Rohit Krishna 5 years, 4 months ago

When the charges are kept in vacuum at a distance r,>>>>>Force F=kq1q2/r^2 where k=1/4π *epsilon not.Let this be equation 1>>>>>>When force is 8F,let distance between the charges be r". Therefore,Force 8F=kq1q2/r"^2. Let this be equation 2.>>>>>>> Now 1/2 gives,------>1/8=r"^2/r^2 and hence r"=r/2√2-----(taking square root on both sides)
http://mycbseguide.com/examin8/

Related Questions

what us current
  • 2 answers
Derivation of ohm's law class 12
  • 0 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App