Laging Tama Which of the following statements isare ALWAYS TRUE I Charge is

# Laging tama which of the following statements isare

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9.Laging Tama.Which of the following statement/s is/areALWAYS TRUE?I. Charge is always conserved.II. Objects can only be positively or negatively charged.III. The charge of an object can only be integral multiples of|e|. A. I onlyB. II onlyC. III onlyD. I, II and IIISolution:I. Conserved for CLOSED SYSTEM but not necessarily otherwise. II. Canbe neutral. Always false. III. Always true. 10.36”-26”-36”.Closed bottlesX,YandZ, and the point charges are arranged as shown inthe figure. Which of the following is the correct relationship of the electric fluxes throughthe said bottles?
First Long Exam Second Semester, AY 2016–2017 Physics 72 11.Predicted Winner sa Miss U.A thin spherical vacuum-filled insulating shell, with radiusRand charge-Q, is centered at the origin. It is placed in between the infinite rod andinfinite plane, each with uniform charged density+λ0and+σ0respectively. The infiniteplane is parallel with theyz-plane, and the infinite rod lies on thexy-plane as shown in thefigure. What is theelectric fieldat P(+R/2,0)? 12. X-Factor.The cross-sections of three infinite conducting cylindrical shells, together withtheir radii, are shown in the figure. The charge densities in the three conductors are uni-formly distributed over their bodies. The figure is not drawn to scale. What is theelectricfieldatr= 4R? A – 7
First Long Exam Second Semester, AY 2016–2017 Physics 72 13.Net so easy.Neutral conducting spherical thick shellsXandYare concentric as shown in the figure.If point charges-4 nCand+5 nCare arranged as shown, what is the chargeon the inner surface of conductorX? A. zeroB.-1 nCC.+1 nCD.+4 nCSolution:-1nCA – 8
First Long Exam Second Semester, AY 2016–2017 Physics 72