+q charges are placed at a, 3a, 5a (up to infinity) and q charges ar – McqOptions

MCQOPTIONS

1.	+q charges are placed at a, 3a, 5a (up to infinity) and q charges are placed at 2a, 4a, 6a .. (up to infinity). What is the total potential energy at origin (0, 0)?
A.	Zero
B.	( frac {q}{a} )
C.	( frac {(q , log2)}{a} )
D.	( frac {qe^2}{a} )
Answer» D. ( frac {qe^2}{a} )

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