Flag Electromagnetic Induction> Two identical balls each have a mass of 1...
question mark

Two identical balls each have a mass of 10g. What charge should these balls be given so that their interaction equalises the force of universal gravitation acting between them? The radii of the balls may be ignored in comparision to distance between them?

Dheeraj , 7 Years ago
Grade 12
anser 1 Answers
Eshan

Last Activity: 6 Years ago

Dear student,

To exactly cancel the gravitaitonal pull by electrostation repulsion,

\dfrac{Gm^2}{d^2}=\dfrac{1}{4\pi\epsilon_0}\dfrac{q^2}{d^2}
\implies q=m\sqrt{4\pi\epsilon_0 G}=8.6\times 10^{-13}C

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...