CT 25 13 Which is the correct direction of the electric field created by charge Q at the location shown below and left of the charge Q A B E C D CT 26 1 Two charges each Q are equal distances from the origin What is the direction of the electric field at the origin A Q Q B Field here C Q Q D noneofof EE none these these CT 26 2 A point in empty space is near 3 charges The distances from the pt to each charge are identical The direction of the electric field at that point is A Some angle 45o Q y C 2Q below the x direction B 45o below the Q x x direction A C along the y direction B D Some other angle E It is zero there CT 23 11a A circular ring of radius R uniformly charged with total charge Q is in the xy plane centered on the origin The electric field at position z h on the zaxis due to a small piece of the ring with charge dQ is shown What is the magnitude of the field kQ z dE A 2 dE h R x y dQ h kdQ B 2 h kdQ C 2 R h2 kdQ D R2 h2 E other CT 23 11b What is dEz the z component of dE z A dEsin B dE cos C dE tan D none of these dE h R x y dQ CT 23 11c What is cos z A B dE h x R2 h2 h C R R h R2 h2 h dQ h 1 D cos 2 y 2 R h E other CT 23 11c Which graph correctly represents the Electric field Ez on the z axis A Ez Ez Green B Pink z Pink C z D Ez Yellow z Purple Noneof of these is correct don t know E non these are correct Ez z HJ D1 What is the magnitude of the net force on a dipole in a uniform electric field Electric field E Q Q A 0 B Q E C 2 Q E D Q E sin E Q E d sin 24 1 There are no charges in the regions shown but there are charges present outside the boxed regions shown Which of the following are possible electric field line configurations b a b a c c A a only B b only C c only D a and b E other combination CT 26 8 Which sketch best shows the E field around 2 identical protons A C B D CT 27 2 Two open surfaces are in an E field Surface A is a flat circular disk of radius R Surface B is a hollow cup hemisphere of the same radius R Which surface has a greater flux through A it A A B B C Both surfaces have the same flux D Not enough info B CT 27 3b Which has the greater flux now A A A B B C Both surfaces have the same flux D Not enough info B CT 27 4 What is the net electric flux through the closed cylindrical surface shown A 0 B positive C negative CT 27 8b An imaginary Gaussian surface in the shape of a right cylinder is shown The flux through the surface is cap area A E E radius r L A EA C 2EA E 0 B 2EA D 2A L r2 E CT 27 21b A sphere of radius R has a total charge Q spread uniformly throughout its volume What is the total charge R enclosed by the small centered sphere of radius r r A Q 43 r 3 2 B Q r 2 R 3 C Q r 3 R E None of these D Q R3 r 3 CT 27 21c If the electric field at distance r from the center of the sphere is E what is the flux E dA out of the small sphere A E R2 B E 4 R2 C E 4 r2 4 D r2E 3 4 E R2 E 3 R r CT 27 21d Within the sphere how does the E field magnitude E depend on distance r from the origin A E r B E r2 C E r3 D E constant within the sphere E None of these E 0 within the sphere HL Flux 1 Q 2Q HL Flux 1 Q 2Q HL Flux 1 Q 2Q CT 27 19 A negative point charge with charge Q sits in the interior of a thick spherical conducting metal shell which carries 0 net charge What is the total charge on the inner surface of the shell A Q Outer surface Q Gaussian surface Inner surface B Q C 2Q D zero E Other CT 27 19b A negative point charge with charge Q sits in the interior of a thick spherical conducting metal shell which carries 0 net charge What is the total charge on the outer surface of the shell A Q Outer surface Q Gaussian surface Inner surface B Q C 2Q D zero E Other CT 27 19ex E 0 inside
View Full Document
Unlocking...