Two point charges Q and +q (where q is positive) produce the net electric field shown at point P in the figure (Figure 1...

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Two point charges Q and +q (where q is positive) produce the net electric field shown at point P in the figure (Figure 1...

Two point charges Q and +q (where q is positive) produce the net electric field shown at point P in the figure (Figure 1). The field points parallel to the line connecting the two charges. What can you conclude about the magnitude of Q?

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Answer 1

Answer #1

Since Q is negative, then the field is in the upward direction. And it adday up with the upward field due to charge q. So any finite negative value of Q will satisfy the mentioned condition.

|Q| = any finite value.

If Q is positive, the magnitude of Q must never smaller than that if q, in order to make the net field in the upward direction. So when Q is positive, then

|Q| < q

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Answer 2

Answer #2

a. Q is negative

b. |Q| = q

c. no would not be possible if the lower charge were negative

answered by: anonymous

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Answer 3

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