What is the electric energy at A and B? What are is the change in electric charg

Question

What is the electric energy at A and B? What are is the change in electric charge in electric energy from A to B? Where is the energy going/from? A positive small charged particle with q = 1 MuC and mass of m = 2 X 10^-12 kg is put into a uniform electric field E = 4 X 10^6 l(N/C) region which direct to the positive x direction. The particle at rest travels from the position A: (xA = 0, yA = 0) to the position B: (xB = 0.01m, yg = 0). Here small charged particle means its presence does not change the electric field. The following questions may not

Explanation / Answer

As the electic field is a conservative field ,

the workdone in an electric field for moving in a closed loop is always ZERO.

Hence , the work done for A to B to C to A is ZERO

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