You're 1.5 m from a charge distribution whose size is much less than 1 m.
You measure an electric field strength of 282 N/C. You move to a distance of
2.0 m, and the field strength becomes 119 N/C.
Hint: Don't try to calculate the charge. Instead determine how the field
decreases with distance and from that, infer the charge.
The Attempt at a Solution
All I was taught by the prof was that I need to break charge distribution
into elements of dq and then integrate over the distance. However, the
question does not necessarily state the distance of the distribution, which is
why I think the question gives two instances of field measurements, i'm not
sure how to approach the question from here. Hope that I can get a good
lead on how to solve this question. Thanks.