Calculate the potential at a point 10 cm away from a point charge +1C in air
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Explanation:
The electric potential of a point charge q , at a distance r from the charge, placed in a medium of permittivity ϵ0, is
V=14πϵ0⋅qr.
It is given that r=20 cm, q=15 cm and permittivity is k=9×107 N/C.
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