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The ratio of electric force to gravitational force between two particles having charges \({\mathrm{q}}_{1},{\mathrm{q}}_…

Q1

The ratio of electric force to gravitational force between two particles having charges \({\mathrm{q}}_{1},{\mathrm{q}}_{2}\mathrm{and}{\mathrm{m}}_{1}\mathrm{and}{\mathrm{m}}_{2}\)respectively is (where symbols have their usual meanings)

a

\(\frac{4{\mathrm{πε}}_{\mathrm{o}}{\mathrm{m}}_{1}{\mathrm{m}}_{2}\mathrm{G}}{{\mathrm{q}}_{1}{\mathrm{q}}_{2}}\)

b

\(\frac{4{\mathrm{πε}}_{\mathrm{o}}{\mathrm{m}}_{1}{\mathrm{m}}_{2}\mathrm{G}}{{\mathrm{q}}_{1}{\mathrm{q}}_{2}{\mathrm{r}}^{4}}\)

c

\(\frac{{\mathrm{q}}_{1}{\mathrm{q}}_{2}{\mathrm{r}}^{4}}{4{\mathrm{πε}}_{\mathrm{o}}{\mathrm{m}}_{1}{\mathrm{m}}_{2}\mathrm{G}}\)

d

\(\frac{{\mathrm{q}}_{1}{\mathrm{q}}_{2}}{4{\mathrm{πε}}_{\mathrm{o}}{\mathrm{Gm}}_{1}{\mathrm{m}}_{2}}\)

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