The figure shows the E-field in the plane of two point charges. Determine for ea

Question

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. The E-field at 'c' is zero. The net charge Q1+Q2 is positive. The E-field at 'b' points directly toward Q2. The electric potential (volts) is larger at 'e' than 'd'. The magnitude of the E-field at 'a' is larger than at 'd' The E-field at 'a' points west. 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!

Explanation / Answer

1) Incorrect

2) Correct, Because the number lines getting out of Q1 is more than the lines getting in Q2.

3) Correct, As we can see the line is pointing toward Q2.

4) Correct, Because potential is, V = k q/r and distance between e and Q1 is shorter that of between d and Q2.

5) Correct.

6) Correct.

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