midterm 2_v1 - University of California, Berkeley Physics...

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1 University of California, Berkeley Physics 7B, Lecture 001, Spring 2009 ( Xiaosheng Huang ) Midterm 2 Monday, 4/6/2009 6:00 – 8:00 PM Name:______________________ SID: ________________________ D/L Section:_______________ GSI: ________________________ Physical Constants: Speed of light, c : 3.00 × 10 8 m/s Mass of electron, m e : 9.11 × 10 -31 kg Elemental charge, e : 1.60 × 10 -19 C Permittivity of free space, ε 0 : 8.85 × 10 -12 C 2 /N m 2 Note : You are allowed one formula sheet (3 ½ ” by 5”, double sided) and a calculator (without wireless capabilities). Do NOT just write down an answer in the answer box; show your steps. Formulaic answers may only involve the quantities given in a problem and constants. Please pay attention to whether you are asked to give a numerical answer or a formulaic answer. Good Luck! Check the box #1 #2 #3 #4 Total Check this box after you have read and filled out the information on this page (1 pt.)
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2 1) (24 pts.) a ) Calculate the electric potential at a point that is on the symmetry axis of and at a
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midterm 2_v1 - University of California, Berkeley Physics...

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