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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 9R from the center? (Use any variable or symbol stated above along with the following as necessary: ke.)

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 9R from the center? (Use any variable or symbol stated above along with the following as necessary: ke.)

check_circleAnswer
Step 1

The radius of the ring,

The total charge spread uniformly,

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

Q
PR
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Q PR

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Step 2

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

The constant ke,

V= _kxQ
1
k
4 TE
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V= _kxQ 1 k 4 TE

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Step 3

The electric potential at th...

kxQ
R
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kxQ R

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