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Unformatted text preview: homework 08 KANUNGO, ANIL 1 Latest unpenalized work: Sep 20 2007 Thurs day 04:00 (after this date you can not make a perfect score). Work cutoff: Sep 20 2007, 4:00 am. Question 1, chap 25, sect 2. part 1 of 3 10 points Consider a long, uniformly charged, cylin drical insulator of radius R and charge density 1 . 4 C / m 3 . (The volume of a cylinder with radius r and length is V = r 2 .) R 2 . 6 cm What is the electric field inside the insulator at a distance 2 . 6 cm from the axis (2 . 6 cm < R )? Answer in units of N / C. Question 2, chap 25, sect 2. part 2 of 3 10 points Determine the absolute value of the po tential difference between r 1 and R , where r 1 < R . (For r < R the electric field takes the form E = C r , where C is positive.) 1.  V  = C parenleftbigg 1 r 2 1 1 R 2 parenrightbigg 2.  V  = C ( R 2 r 2 1 ) 3.  V  = 1 2 C ( R 2 r 2 1 ) 4.  V  = C r 1 5.  V  = C r 1 2 6.  V  = C ( R r 1 ) 7.  V  = C parenleftbigg 1 r 1 1 R parenrightbigg 8.  V  = C ( R r 1 ) r 1 9.  V  = 1 2 C ( R r 1 ) r 1 10.  V  = C radicalBig R 2 r 2 1 Question 3, chap 25, sect 2. part 3 of 3 10 points What is the relationship between the po tentials V r 1 and V R ?...
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 Fall '08
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 Charge, Work

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