The figure at the right shows some measurements of the electric field produced b

Question

The figure at the right shows some measurements of the electric field produced by four charges (A, B, C, and D) and measured by a negative test charge. Circle the correct answers. Which of the following statements are true about these charges? Charges A and D are positive. Charges B and C are positive. All the charges are of equal magnitude. You can't conclude anything about the charges. Explain your reasoning. Which of the following graphs represents the electric potential along the dotted line (x axis)? (Choose N if none of these graphs are correct.)

Explanation / Answer

All the charges will have same magnitude since if we look at the field lines closely then the number of magnetic field lines going out or coming out of charge particle is equal in each case

So magnituge of charges is equal.

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