A Uniform Circular Ring Has Charge Q and Radius R

question 53

Multiple Choice

A uniform circular ring has charge Q and radius r.A uniformly charged disk also has charge Q and radius r.Calculate the electric field at a distance of r along the axis of the ring divided by the electric field at a distance of r along the axis of the disk.

• A)1.0
• B)0.60
• C)1.7
• D)0.50
• E)0.85

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