Two charges are spaced by 18 cm as shown in the diagram. The left charge is Q 1

Question

Two charges are spaced by 18 cm as shown in the diagram.   The

left charge is Q1 = -2 mC (-2

Two charges are spaced by 18 cm as shown in the diagram. The left charge is Q1 = -2 mC (-2 ´ 10-6 C). The right charge is Q2 = -4 mC (-4 ´ 10-6 C). If field lines were drawn in the picture, which charge would have more field lines going into (or coming out of) it? the right charge, Q2 the left charge, Q1 they would have the same amount of field lines The net electrical potential energy of the system is: positive negative zero What is the electric field half-way between the two charges? 6,666,667 N/C to the left 2,222,222 N/C to the left 0 N/C 2,222,222 N/C to the right 6,666,667 N/C to the right What is the change in potential energy of the system if the spacing between the charges is tripled (from 18cm to 54cm)? +0.267 J +0.133 J 0 -0.133 J -0.267 J

Explanation / Answer

1.c

2.a

3.d

4.b

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