In the figure, the electric field lines are shown for a system of two point charges QA, and QB. Which of the following could represent the magnitudes and signs of QA, and QB? (take q to be a positive quantity) O a. QA = +7q, QB = -3q %3D %3D O b. QA = +3q, QB = -7q Oc. QA = +q, QB = -q %3D

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.