Question

two identical particles each of mass M and charge Q are placed a certain distance apart. if they are in equilibrium under mutual gravitational and electric force then calculate the order of Q/M in SI unit

Answer 1

THERE IS YOURS SOLUTION

◆ So, the Correct Answer is 10^-10.






HOPE IT HELPS

Answer 2

order of Q/m = $10^{-10}$

Explanation:

repulsive electrostatic force = k$Q^{2}$/$r^{2}$

attractive gravitational force = G$m^{2}$/$r^{2}$

for equilibrium ; F1 = F2

       k$Q^{2}$/$r^{2}$ = G$m^{2}$/$r^{2}$

 

   Q/m = $0.8X10^{-10}$

   hence , order of Q/m = $10^{-10}$