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Properties of Charges

What is the r...

Question

What is the ratio of electrostatic force and gravitational force between a proton and electron at 1mm distance?

Mass of proton – $1.67 \times 10^{- 27}$ kg

Mass of electron – $9.11 \times 10^{- 31}$ kg

Charge of electron – $1.6 \times 10^{- 19}$ kg

$10^{38}$

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$10^{39}$

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$10^{40}$

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$10^{41}$

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Solution

The correct option is B
$10^{39}$

You know the formula for both forces. Find their ratio :P

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Similar questions

What is the ratio of electrostatic force and gravitational force between a proton and electron at 1 mm distance?

Mass of proton – $1.67 \times 10^{- 27} k g$

Mass of electron – $9.11 \times 10^{- 31} k g$

Charge of electron – $1.6 \times 10^{- 19} C$

m_{p} = 1.67 \times 10^{- 27} k g

m_{e} = 9.1 \times 10^{- 31} k g

q_{p} = 1.6 \times 10^{- 19} C

9.11 \times 10^{- 31}

1.67 \times 10^{- 27}

F_{e} / F_{g}

5 \times 10^{- 11} m

= 1.6 \times 10^{- 19} C

= 9.1 \times 10^{- 31}

= 1.6 \times 10^{- 27} k g, G = 6.7 \times 10^{- 11} N m^{2} / k g^{2})

9.1 \times 10^{31} k g

1.7 \times 10^{- 27} k g

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