Question

9. Suppose that the Sun has a positive electric charge and each of the planets a negative
electric charge, and suppose that there is no gravitational force. In what way will the
motions of the planets predicted by this "electric" model of the Solar System differ from
the observed motions?

Answer 1

Answer

Actually gravitational force between two bodies is given by

$F_g=\frac{-Gm_1m_2}{r^2}$

And

Electric force is given by

$F_e=\frac{kq_1q_2}{r^2}$

These both are similiarly type forces.

If we replace

$K=-G=\frac{1}{4\pi \epsilon_0}$

So all concepts are changed by like bohr model type.