Act.02.14

# Act.02.14 - V 2(b Calculate the charge on each of the two...

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Physics 2102, February 14, 2011. Activity 1: Two electrons are separated by a distance R . If the distance between the charges is increased to 2 R , what happens to the total electric potential energy of the system? Circle the right answer. (a) It would increase to four times its initial value. (b) It would increase to two times its initial value. (c) It would remain the same. (d) It would decrease to one half its initial value. (e) It would decrease to one fourth its initial value. Physics 2102, February 14, 2011. Activity 2: The figure shows two metal spheres separated by a distance d which is large compared with their radii. The radius of sphere 1 is r 1 = r , and the radius of sphere 2 is r 2 = 2r . Initially, we put charge Q on sphere 1. Then we connect the two spheres with a very thin conducting wire. (a) What can you say about the electric potential on each of the two spheres after they have been connected with the wire? Is V 1 (electric potential of sphere 1) smaller than, the same as, or larger than

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Unformatted text preview: V 2 ? (b) Calculate the charge on each of the two spheres (in units of the charge Q ). Activity 2 Two electrons are separated by a distance R . If the distance between the charges is increased to 2 R , what happens to the total electric potential energy of the system? Circle the right answer. (a) It would increase to four times its initial value. (b) It would increase to two times its initial value. (c) It would remain the same. (d) It would decrease to one half its initial value. (e) It would decrease to one fourth its initial value. Activity 2 Two electrons are separated by a distance R . If the distance between the charges is increased to 2 R , what happens to the total electric potential energy of the system? Circle the right answer. (a) It would increase to four times its initial value. (b) It would increase to two times its initial value. (c) It would remain the same. (d) It would decrease to one half its initial value. (e) It would decrease to one fourth its initial value....
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