A Ring of Charge of Radius Lies in the X-Y

question 69

Multiple Choice

A ring of charge of radius lies in the x-y plane with its center at the origin.The charge counterclockwise from is uniformly distributed with the total charge equaling Q. The charge counterclockwise from is uniformly distributed with the total charge for this half of the ring equaling . What is the direction of the electric field on the z-axis at the position ?

• A) It is in the direction.
• B) It is in the direction.
• C) It is in the direction.
• D) It has no direction since there.

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