After factoring in all the electrons and protons in a water molecule, the electric field has the mathematical patterned given by the formula: E 3.6 x 10-20 r3 where E is the electric field measured in N/C and r is the distance from the water molecule measured in meters. What is the magnitude of the change in electric potential for an object (say sodium atom) that moves from close (r = 4.00 x 10^-9 m) to the atom to far away (125 x 10^-9 m)?

After factoring in all the electrons and protons in a water molecule, the electric field has the mathematical patterned given by the formula: E 3.6 x 10-20 r3 where E is the electric field measured in N/C and r is the distance from the water molecule measured in meters. What is the magnitude of the change in electric potential for an object (say sodium atom) that moves from close (r = 4.00 x 10^-9 m) to the atom to far away (125 x 10^-9 m)?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter26: Electric Potential

Section: Chapter Questions

Problem 65PQ: Two 5.00-nC charged particles are in a uniform electric field with a magnitude of 625 N/C. Each of...

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If a proton is released from rest in an electric field, will it move in the direction of increasing or decreasing potential? Also answer this question for an electron and a neutron. Explain why.
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Four particles are positioned on the rim of a circle. The charges on the particles are +0.500 C, +1.50 C, 1.00 C, and 0.500 C. If the electric potential at the center of the circle due to the +0.500 C charge alone is 4.50 104 V, what is the total electric potential at the center due to the four charges? (a) 18.0 104 V (b) 4.50 104 V (c) 0 (d) 4.50 104 V (e) 9.00 104 V
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