Electrostatics Question 751

Question: There is an infinite straight chain of alternating charges q and -q. The distance between the two neighboring charges is equal to a. Find the interaction energy of any charge with all the other charges.

Options:

A) 2q24πε0a

B) 2q2loge24πε0a

C) 2q2loge24πε0a

D) Zero

Show Answer

Answer:

Correct Answer: C

Solution:

[c] U=2kq2[1a+12a13a+14a+..]



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