Negative charge - Q is distributed uniformly around a quarter-circle of radius a

Question

Negative charge - Q is distributed uniformly around a quarter-circle of radius a that lies in the first quadrant, with the center of curvature at the origin. Part A Find the x-component of the net electric field at the origin. Express your answer in terms of the variables Q, a and appropriate constants. Ex= Incorrect; Try Again; 5 attempts remaining The correct answer involves the variable Q, which was not part of your answer. Part B Find the y-component of the net electric field at the origin. Express your answer in terms of the variables Q, a and appropriate constants.

Explanation / Answer

A = k(2Q/pi* (a^2))

B = -k(2Q/pi* (a^2))

where k = (1/(4 *pi*E0 ))

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