Question

two identical small bodies each of mass m and charge q are suspended from two strings each of length from a fixed point. This whole system is taken into an orbiting artificial satellite,then find the tension in strings

Answer 1

Given :
Two identical small bodies each of mass m
charge =q 

The angle between two strings will be 180 degrees. .

Tension force will be equal to coulomb force of repulsion between two positive charge.

F=T=Kq1q2/r²


=Kq²/r²But we know that r=2l

henceF=T=kq²/(2l)²
=Kq²/4l2

where K=1/4πε₀