Give three examples of electric fields in nature. How does the conductive paper

Question

Give three examples of electric fields in nature. How does the conductive paper help in this experiment? What if you painted two bars on a piece of wood, and tried to map out the field lines. What would happen? Why does Earth have an electric field surrounding it? Where is the electric field around Earth the strongest? Why isn't there any voltage, thus no electric field inside a conducting circle, or for that matter, any conducting surface with no charge within? The electric field E - F/q is analogous to the gravitational field, g - F/m. They both describe a vector field. a. Describe what a vector field is. b. In what ways are the electric field and gravitational field the same? c. In ways are they different?

Explanation / Answer

a) Vector field is a function of space whose value at each point is Vector quantity

b) Similarity between electric field and gravitational field

Electric and gravitational field is inversely proportional to the square of the distance

c) Difference - Force of gravity is much weaker than electric force

- Force of gravity is always attractive and electric force can be attractive or repulsive

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