Problem

Problem

Two point charges

+q

and

-q

are held fixed at

(-a, 0)

and

(a, 0)

respectively of a

x

-

y

coordinate system, then (a) the electric field

\mathbf{E}

at all points on the

x

-axis has the same direction (b)

\mathbf{E}

at all points on the

y

-axis is along

\hat{i}

(c) positive work is done in bringing a test charge from infinity to the origin (d) All of the above

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