ElectrostaticsHard

Question

For an infinite line of charge having charge density λ lying along x-axis, the work required in moving charge q from C to A along arc CA is :

Options

A. loge√2
B. loge√2
C. loge2
D. loge

Solution

B & C are equipotential and field is conservative,
∴    WCA = WBA .  = − q dr.         =  In 2.

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