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Electrostatics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
Question

Two thin wire rings each having a radius R are placed at  a distance d apart with their axes coinciding. The charges on the two rings are +q  and -q. The potential difference between the centres of the two rings is

(a) Zero  

(b)

(c)

(d)

✓

Answer

(d)

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