Question

Coulombs law and gravitation law differ in which respect

Answer 1

Electrical force is might be attractive as well as repulsive,while the gravitational force is only attractive.Electrostatic force is medium dependent and can be shielded while the gravitational force lacks this property.The value of gravitational constant is very small while the electrical constant is very large.It is because of the fact that gravitational force is very weak as compared to electrical force.In using the law of gravitation,we define mass ‘m’ from F=ma ,then determine ‘G’ by applying gravitational law to known masses.While in case of coulomb’s law,we define ‘k’ for particular value and then determine ‘q’ by applying coulomb’s law.

Answer 2

Dear Student,


Her is both similarities and differences for coulomb law and gravitation law.....
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Similarities among the electrical and Gravitation force

Both forces are the conservative forces.

Both forces obey the inverse square law.

The charge ‘q’ plays the same role in the coulomb’s law that the mass ‘m’ plays in newton’s law law of gravitation.

Differences among the electrical and gravitational force

Electrical force is might be attractive as well as repulsive,while the gravitational force is only attractive.

Electrostatic force is medium dependent and can be shielded while the gravitational force lacks this property.

The value of gravitational constant is very small while the electrical constant is very large.It is because of the fact that gravitational force is very weak as compared to electrical force.

In using the law of gravitation,we define mass ‘m’ from F=ma ,then determine ‘G’ by applying gravitational law to known masses.While in case of coulomb’s law,we define ‘k’ for particular value and then determine ‘q’ by applying coulomb’s law.



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