hkLQ2u1cH3bN_1210016556_jwk572

hkLQ2u1cH3bN_1210016556_jwk572 - 2 outside , . 4 m 9 C 3 C...

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inclasstest 02 – KIM, JI – Due: Jan 28 2008, 1:00 pm 1 Question 1, chap -1, sect -1. part 1 of 1 1 points This is a question for showing your atten- dance. Please choose the correct answer be- low, or you will lose 25% of this weekly test. 1. This is the wrong answer. 2. This is the correct answer. correct Explanation: Question 2, chap 24, sect 5. part 1 of 1 3 points Consider a conducting spherical shell with inner radius 0 . 6 m and outer radius 1 . 2 m. There is a net charge 3 μ C on the shell. At its center, within the hollow cavity, there is a point charge 9 μ C. 0 . 6 m , Q 2 inside 1 . 2 m Q ′′
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Unformatted text preview: 2 outside , . 4 m 9 C 3 C S Determine the Fux through the spherical Gaussian surface S , which has a radius of . 4 m. The permitivity of free space is 8 . 8542 10 12 C 2 / N m 2 . Correct answer: 1 . 01647 10 6 . Explanation: Let : q 1 = 9 C = 9 10 6 C and = 8 . 8542 10 12 C 2 / N m 2 . The surface S encloses only the point charge q 1 , so by Gauss Law S = c S v E d v A = q encl = q 1 = 9 10 6 C 8 . 8542 10 12 C 2 / N m 2 = 1 . 01647 10 6 N m 2 / C ....
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