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A level physics Electric field question (3)

Can someone please explain which one is correct and why each of the other options are wrong because honestly I don’t understand what knowledge I am missing to be able deduce myself why each is right or wrong.

Thank you98E521EB-F0D4-4DC2-94CB-1A557BBA8423.jpeg
(edited 1 month ago)
Reply 1
Here's some ideas:

Arc PQ is an equipotential

Force is proportional to electric field

Negatively charged particles are attracted to positively charged ones

Field lines flow from positive to negative

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