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The charge per unit length on the thin semicircular wire shown below is 2. What is the electric field at the point P? (Assume that A is positive. For the magnitude, use the following as necessary: so, A, and r.)

The charge per unit length on the thin semicircular wire shown below is 2. What is the electric field at the point P? (Assume that A is positive. For the magnitude, use the following as necessary: so, A, and r.)

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The charge per unit length on the thin semicircular wire shown below is A. What is the electric field at the point P? (Assume that a is positive. For the magnitude, use the following as necessary: En, a, and r.) magnitude E = direction upward
Transcribed Image Text:The charge per unit length on the thin semicircular wire shown below is A. What is the electric field at the point P? (Assume that a is positive. For the magnitude, use the following as necessary: En, a, and r.) magnitude E = direction upward
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