7. Compare and contrast electric force and gravitational force. 8. Describe the conditions under which electric force can either be attractive or repulsive.

•Gravitation only attracts, while electrical forces attract when the  

       electrical charges are  opposite and repel if the charges are similar.  

      Gravitation is considered a monopole force,  while electrostatics is a

      dipole force.

Explanation:

•The strength of both forces depends on the distance.  

•Both gravitation forces and electric forces obey the inverse square law of distance.

•Both gravitation forces and electric forces can operate even in vacuum.

•Both gravitation forces and electric conservative forces

•Electric force is created by the attraction or repulsion of two charged bodies.

•Gravitational force is created by two bodies being attracted to each other due each body  

       being caught in each other's gravitational field.

b.

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the higher the current the higher the mag field around it the higher the influence on the compass