Find the ratio of the magnitudes of the electrical and the gravitational forces acting between a proton and an electron separated by an arbitrary distance d.  Ratio of the magnitudes of the these two forces? A)–2.27E39 B)+2.27E39 C)+4.16E42 D)+1.41E58  What are the units of this ratio? A)[dimensionless] B)J C)N D)m   What is the takeaway from this problem? A)The electrical force is weak. B)The gravitational force is strong. CThe electrical force is strong.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.