# 302 L hw 3 - pokharel (yp624) HW03 TSOI (92515) 1 This...

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Unformatted text preview: pokharel (yp624) HW03 TSOI (92515) 1 This print-out should have 22 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Two negatively charged spheres with different radii are shown in the figure below.- Q- Q The two conductors are now conneted by a wire. Which of the following occurs when the two spheres are connected with a conducting wire? 1. No charge flows. 2. Negative charge flows from the smaller sphere to the larger sphere until the elec- tric field at the surface of each sphere is the same. 3. Negative charge flows from the larger sphere to the smaller sphere until the elec- tric field at the surface of each sphere is the same. 4. Negative charge flows from the smaller sphere to the larger sphere until the electric potential of each sphere is the same. 5. Negative charge flows from the larger sphere to the smaller sphere until the elec- tric potential of each sphere is the same. 002 10.0 points Through what potential difference would an electron need to be accelerated for it to achieve a speed of 2 . 2 % of the speed of light (2 . 99792 10 8 m / s), starting from rest? Answer in units of V. 003 10.0 points Four charges are placed at the corners of a square of side a , with q 1 = q 2 =- q , q 3 = q 4 = + q , where q is positive. Initially there is no charge at the center of the square. q 1 =- q q 2 =- q q 4 = + q q 3 = + q q Find the work required to bring the charge q from infinity and place it at the center of the square. 1. W = 8 k q 2 a 2 2. W = 2 k q 2 a 2 3. W =- 4 k q 2 a 4. W =- 2 k q 2 a 5. W = 2 k q 2 a 6. W =- 2 k q 2 a 2 7. W = 4 k q 2 a 2 8. W = 0 9. W =- 4 k q 2 a 2 10. W = 4 k q 2 a 004 10.0 points A dipole field pattern is shown in the figure.A dipole field pattern is shown in the figure....
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## 302 L hw 3 - pokharel (yp624) HW03 TSOI (92515) 1 This...

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