The electric field from two charges in the plane of the paper is represented by

Question

The electric field from two charges in the plane of the paper is represented by the dashed lines and arrows below. Select the best response for each statement below. (Use 'North' towards top of page, and East to the right.) The force on a (+) test charge at K is zero. The magnitude of the charge on the right is ... that on the left. The force on a (+) test charge at S is directed ... The magnitude of the E-field at J is ... than at P. The sign of the charge on the left is positive. The forcer on a (-) test charge at L is directed...

Explanation / Answer

1)False

the force on a (+) test charge at K is not zero, there just happens to be no electric field lines drawn in that region

2) The magnitude of the charge on the right is ''grater than'' than the charge on the left.

about 18/13 times-- ratio of electric fields of each

3) The force on a (+) test charge at S is directed "south" since that is the direction of the electric field.

4) The magnitude of the electric field at J is "less than" the electric field at P, because P is closer to the point charge than J

5) True.

6) The force on a (-) test charge at L is directed ''west'' because that is the direction opposite to the electric field line.

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