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A pair of unlike charges equal in magnitude and separated by a small distance is known as a dipole. Such a pair is situated on the x axis at equal distances from the origin shown in the figure below. The electric field at points to the right of the dipole that are very far compared to the distance between the two charges is given by E-2kad, where d is the distance between the two charges, kis Coulomb's constant, and a is the magnitude of the charges of the dipole. (a) What is the potential difference VA VB if q- 4.00 nC, d-2.50 mm, x 14.5 cm, and xg 23.0 cm? 81 How is the potential defined in terms of a varying electric field? V (b) If an electron moves from B to A, what is the change in potential energy of the electron-dipole system? Additional Materials

A pair of unlike charges equal in magnitude and separated by a small distance is known as a dipole. Such a pair is situated on the x axis at equal distances from the origin shown in the figure below. The electric field at points to the right of the dipole that are very far compared to the distance between the two charges is given by E-2kad, where d is the distance between the two charges, kis Coulomb's constant, and a is the magnitude of the charges of the dipole. (a) What is the potential difference VA VB if q- 4.00 nC, d-2.50 mm, x 14.5 cm, and xg 23.0 cm? 81 How is the potential defined in terms of a varying electric field? V (b) If an electron moves from B to A, what is the change in potential energy of the electron-dipole system? Additional Materials

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A pair of unlike charges equal in magnitude and separated by a small distance is known as a dipole. Such a pair is situated on the x axis at equal distances from the origin shown in the figure below. The electric field at points to the right of the dipole that are very far compared to the distance between the two charges is given by E-2kad, where d is the distance between the two charges, kis Coulomb's constant, and a is the magnitude of the charges of the dipole. (a) What is the potential difference VA VB if q- 4.00 nC, d-2.50 mm, x 14.5 cm, and xa - 23.0 cm? 81 How is the potential defined in terms of a varying electric field? V (b) If an electron moves from B to A, what is the change in potential energy of the electron-dipole system? Additional Materials
Transcribed Image Text:A pair of unlike charges equal in magnitude and separated by a small distance is known as a dipole. Such a pair is situated on the x axis at equal distances from the origin shown in the figure below. The electric field at points to the right of the dipole that are very far compared to the distance between the two charges is given by E-2kad, where d is the distance between the two charges, kis Coulomb's constant, and a is the magnitude of the charges of the dipole. (a) What is the potential difference VA VB if q- 4.00 nC, d-2.50 mm, x 14.5 cm, and xa - 23.0 cm? 81 How is the potential defined in terms of a varying electric field? V (b) If an electron moves from B to A, what is the change in potential energy of the electron-dipole system? Additional Materials
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