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Shown in the image are electric field lines of two interacting charged particles.
By Nein Arimasen (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY-SA 2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons
Which of the following statements is true regarding these particles?
Both particles are positively charged and equal in charge.
Both particles are positively charged with different magnitudes.
Both particles are negatively charged and equal in charge.
Both particles are negatively charged with different magnitudes.