alleryElectric field due to a point charge q at distance r:
AE = q/r
BE = kq/r
CE = kq/r²
DE = kqr²
Answer & Solution
Correct answer: C. E = kq/r²
E = F/q_test = kq/r².
Inverse-square decline with distance.
Points radially outward for positive q, inward for negative.
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