Question

Consider a ring of radius *R* with the total charge *Q* spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 9*R* from the center? (Use any variable or symbol stated above along with the following as necessary: *k*_{e}.)

Step 1

The radius of the ring,

The total charge spread uniformly,

The distance of the axis 9R from the centre of the ring,

Step 2

The potential difference between the point of axis and the centre of the ring,

The constant k_{e,}

Step 3

The electric potential at th...

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