Tham khảo tài liệu 'physics_test_bank_split_24', khoa học tự nhiên, vật lý phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 15. The table below gives the electric flux in N m2 C through the ends and round surfaces of four Gaussian surfaces in the form of cylinders. Rank the cylinders according to the charge inside from the most negative to the most positive. cylinder 1 cylinder 2 cylinder 3 cylinder 4 left end 2 X 10 9 3 X 10 9 2 X10 9 2 X 10-9 right end 4 X10-9 2 X10 9 5 X10 9 5 X10 9 rounded surface 6 X10 9 6 X10 9 3 X10-9 3 X10 9 A. 1 2 3 4 B. 4 3 2 1 C. 3 4 2 1 D. 3 1 4 2 E. 4 3 1 2 ans E 16. A conducting sphere of radius m has a charge of X 10-9C deposited on it. The magnitude of the electric field in N C just outside the surface of the sphere is A. 0 B. 450 C. 900 D. 4500 E. 90 000 ans C 17. A round wastepaper basket with a radius opening is in a uniform electric field of 300 N C perpendicular to the opening. The total flux through the sides and bottom in N m2 C is A. 0 B. C. 21 D. 280 E. can not tell without knowing the areas of the sides and bottom ans C 18. 10C of charge are placed on a spherical conducting shell. A particle with a charge of 3C is placed at the center of the cavity. The net charge on the inner surface of the shell is A. 7C B. 3C C. 0C D. 3C E. 7C ans D 346 Chapter 23 GA USS LAW Simpo PDF Merge and Split Unregistered Version - http 19. 10C of charge are placed on a spherical conducting shell. A particle with a charge of 3C is placed at the center of the cavity. The net charge on the outer surface of the shell is A. 7C B. 3C C. 0C D. 3C E. 7C ans E 20. A 30-N C uniform electric field points perpendicularly toward the left face of a large neutral conducting sheet. The surface charge density in C m2 on the left and right faces respectively are A. X 10-9 C m2 X 10-9 C m2 B. X 10-9 C m2 X 10-9 C m2 C. X 10-9 C m2 X 10-9 C m2 D. X 10-9 C m 2 X 10-9 C m2 E. 0 0 ans A 21. A solid insulating sphere of radius R contains positive .
