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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.