Physics, asked by study00009999, 6 days ago

the comparison between coulomb force and gravitational force, which of the following is true in free space? a) K>G b) K​

Answers

Answered by alen033296
0

Answer:

hope you understood pls make me brainiest

Explanation:

The ratio of Coulomb force to gravitational force for an electron and a proton is given as,

r  

1

=  

R  

2

 

Gm  

1

m  

2

 

 

4πε  

0

 

1

×  

R  

2

 

q  

1

q  

2

 

 

 

=  

6.67×10  

−11

×9.1×10  

−31

×1.67×10  

−27

 

9×10  

9

×(1.6×10  

−19

)×(1.6×10  

−19

)

 

=  

1

2.27×10  

39

 

 

The ratio of Coulomb force to gravitational force for two protons is given as,

r  

2

=  

R  

2

 

Gm  

2

 

 

4πε  

0

 

1

×  

R  

2

 

q  

1

q  

2

 

 

 

=  

6.67×10  

−11

×(1.67×10  

−27

)  

2

 

9×10  

9

×(1.6×10  

−19

)×(1.6×10  

−19

)

 

=  

1

1.24×10  

36

 

 

(b)

The magnitude of Coulomb force between electron and proton is given as,

F=  

4πε  

0

 

1

×  

R  

2

 

q  

1

q  

2

 

 

=  

(10  

−10

)  

2

 

9×10  

9

×(1.6×10  

−19

)×(1.6×10  

−19

)

 

=2.304×10  

−8

N

The acceleration of electron is given as,

a  

1

=  

m  

1

 

F

 

=  

9.1×10  

−31

 

2.304×10  

−8

 

 

=2.5×10  

22

m/s  

2

 

The acceleration of proton is given as,

a  

2

=  

m  

2

 

F

 

=  

1.67×10  

−27

 

2.304×10  

−8

 

 

=1.4×10  

19

m/s  

2

Similar questions