The work done in slowly moving an electron of charge e and mass m from A to B along a - Physics - Electrostatic Potential And Capacitance

Question

The work done in slowly moving an electron of charge e and mass m
from A to B along a semicircular path in vertical plane in the
field of charge Q is? (Q is present at the centre of the AB i e at
the centre of diameter) Ans is -2mgr please explain how?

Vara · Accepted Answer

Dear
Student,
Please find below
the solution to the asked query:
Work done:W=Force * Displacement=- mg * 2r=-2mgr
Hope this information will clear your doubts about
Work done
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The work done in slowly moving an electron of charge e and mass m from A to B along a semicircular path in vertical plane in the field of charge Q is? (Q is present at the centre of the AB i.e at the centre of diameter) Ans is -2mgr please explain how?