Question

Coulomb's force between two protons is ___ times the gravitational force between them on mars.(Coulomb force between two protons is 10³⁶ times the gravitational force between them on earth)​

Answer 1

Answer:

Correct option is

D

10+36

Gravitational force =r2G(mp)2

Electric force =r2K(e)(e)

Ratio =r2K(1.6×10−19)2×G×(1.6 7×10−27)2r2

=(6.6 7×10−11)(1.6 7×10−27)2(9×109)×(1.6×10−19)2

=1.23×1020×1016

=1036(order of magnitude)