What is the work done by electric force in taking a charged particle of charge 1C by 10 cm along the equator of a dipole?

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Solution

Zero.
The potential along the equatorial line of a dipole is zero.
Thus how much distance you move the workdone is zero.(as w = (v2 -v1) q,and v2 - v1 = 0, "v1" and "v2" represent potential)

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What is the work done by electric force in taking a charged particle of charge 1C by 10 cm along the equator of a dipole?

Zero. The potential along the equatorial line of a dipole is zero. Thus how much distance you move the workdone is zero.(as w = (v2 -v1) q,and v2 - v1 = 0, "v1" and "v2" represent potential)

Zero.
The potential along the equatorial line of a dipole is zero.
Thus how much distance you move the workdone is zero.(as w = (v2 -v1) q,and v2 - v1 = 0, "v1" and "v2" represent potential)