A metal wire is bent in a circle of radius 10 cm. It is given a charge `200 muC` which is spread on it uniformly. Calculate the electric potential at its center.

A metal wire is bent in a circle of radius 10 cm. It is given a charge

1.	A metal wire is bent in a circle of radius 10 cm. It is given a charge `200 muC` which is spread on it uniformly. Calculate the electric potential at its center.
Answer» Here, `q = 200 muC = 2xx10^(-4) C` `r = 10cm = 0.10m` Electric potential at the center, `V = (1)/(4pi in_(0)) (q)/(r )` `= (9xx10^(9)xx2xx10^(-4))/(0.1) = 18xx10^(6)V`

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A metal wire is bent in a circle of radius 10 cm. It is given a charge `200 muC` which is spread on it uniformly. Calculate the electric potential at its center.

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