week4 (dragged) 26

# week4 (dragged) 26 - separated by distance d q-q d What...

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V = k q d/ 2 q d/ 2 = 0 E = k q ( d/ 2) 2 + q ( d/ 2) 2 = k 8 q d 2 A : E = 0 , V = 0 B : E = k 8 q d 2 , V = 0 C : E = k 8 q d 2 , V = k q d D : E = k 8 q d 2 , V = k q 2 d E : E = 0 , V = k q d August 12, 2010 22 Electric Potential from Two Oppositely Charged Point Charges What’s the potential and electric field in the middle between two point charges q and -q
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Unformatted text preview: separated by distance d. q-q d ? What does V=0 mean? No energy is needed to bring a charge From rest to rest at infnity. Thursday, September 16, 2010...
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