1bb-quiz1

# 1bb-quiz1 - A) 7.5 x 10 13 B) 6.5 x 10 13 C) 9.5 x 10 13 D)...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A small sphere with a mass of 275.0 g is moving along the y-axis in the negative y direction when it encounters an electric field of magnitude 5.0 N/C, pointing in the positive y direction. If the sphere suddenly accelerates in the y-direction at +13.0 m/s 2 , what is the charge that it carries? A) -0.72 C B) -720 C C) 720 C D) 0.72 C 2) A flat disk 1.0 m in radius is oriented so as to have its surface normal make an angle p /3 radians with a uniform electric field. If the field strength is 140.0 N/C, find the electric flux through the surface. A) 480/ p N œ m 2 /C B) 70 p N œ m 2 /C C) 120 / p N œ m 2 /C D) 30 p N œ m 2 /C Figure 22.3 A point charge Q = -12 m C, and two other charges, q 1 and q 2 , are placed as shown. The electric force components on charge Q are F x = +0.005 N and F y = -0.003 N. 3) In Figure 22.3, the number of excess electrons in charge Q is closest to:

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Unformatted text preview: A) 7.5 x 10 13 B) 6.5 x 10 13 C) 9.5 x 10 13 D) 8.5 x 10 13 E) 5.5 x 10 13 4) In Figure 22.3, charge q 1 , in nC, is closest to: A) -200 B) +200 C) +600 D) -400 E) +400 5) In Figure 22.3, charge q 2 , in nC, is closest to: A) -480 B) +640 C) +480 D) +320 E) -640 1 Figure 23.5 A hollow conducting sphere has radii of 0.80 m and 1.20 m. The sphere carries a charge of -500 nc. A point charge of +300 nC is present at the center. 6) In Figure 23.5, the charge on the outer spherical surface, in nC, is closest to: A) -200 B) -800 C) -500 D) -300 E) zero 7) In Figure 23.5, the radial component of the electric field at a point which is 0.90 m from the center is closest to: A) +2000 N/C B) +3000 N/C C) zero D) -2000 N/C E) -3000 N/C 2 Answer Key Testname: 1BB-QUIZ1 1) D 2) B 3) A 4) C 5) E 6) A 7) C 3...
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## This note was uploaded on 03/22/2009 for the course PHYS PHYS 1B taught by Professor Berman during the Spring '09 term at UCSD.

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1bb-quiz1 - A) 7.5 x 10 13 B) 6.5 x 10 13 C) 9.5 x 10 13 D)...

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