State what is indicated by the direction of an electric field line.
On Fig. 1.1, draw field lines to represent the electric field acting between the two charges.
Fig. 1.1
On Fig. 1.2, draw field lines to represent the electric field acting between the two charges.
Fig. 1.2
Gravitational fields and electric fields share many similarities. One similarity is that Newton's law of gravitation applies to point masses, and Coulomb's law applies to point charges.
State a difference between gravitational forces and electric forces.
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