These two responses are incorrect. please be sure! The figure shows the E-field

Question

These two responses are incorrect. please be sure!

The figure shows the E-field in the plane of two point charges. Determine for each of the following statements whether it is correct or incorrect. correct The magnitude of the E-field at 'a' is larger than at 'c Correct The E-field at Ta' points directly toward Q2. Incorrect The E-field at 'C' is zero. Correct The electric potential (volts) is larger at 'c' than 'e Correct The E-field at 'b' points north Incorrect The magnitude of the charge Q2 is larger than the magnitude of Q1 The magnitude of an electric field is proportional to the density of electric field lines. The direction of an electric field line (the little arrows) is the direction of the force on a positive test charge. Double-check the direction of your arrows! Submit Answer Incorrect. Tries 10/15 Previous Tries

Explanation / Answer

1)Correct

since, E = kq/r

r is less fpr a than c.

2)Correct

we see the field lines are directed towards q2

3)incorrect

There is no way, that field at c may be zero.

4)Incorrect.

potential is, V = k q/r

for c, V = kq2/r2 + kq1/r1

5)Correct.

Since, it points upwards, due north.

6)Incorrect.

More lines emerges from Q1, so it has to be bigger in magnitude than q2.

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