Use the following information to answer question 10. At a distance of 0. 12 m from a point charge, the charge produces an electric field 2.5 x 103 N/C. toward the charge. 10. The charge producing this field is A. 3.3 x 10-8 C B. -3.3 x 10 8 C C. +4.0 x 10-9 C D. -4.0 x 10-9 C Use the following information to answer question 1 1. an experiment using a Millikan apparatus, a negatively charged plastic sphere is suspended between oppositely charged, parallel plates. The mass of the sphere ; 145 x 10-14 kg. The electric potential difference between the plates is 5.50 x 103 the plates are 2.3 x 10-2 m apart. 1. The magnitude of the charge on the sphere is A. 4.9 x 10-19 C B. 4.8 x 10-18 C C. 1.1 x 10-8 C D. 1.1 x 10-7 Call

Miation to answer questions 12 and 13. A liquid crystal display (LCD) television uses a cold guthada fluorescent bulb as a light Sauce, The buth is filled with low pressure mercury gas, Electrons are accelerated front one electrode to the other producing a current of 5.00 # 10 A in the bull Cold Cathode Bulb Negatively Charged Positively sleetrode electrode some of the accelerated electrons collide with atoms of mercury gas, Hg, in the bulb, causing electrons in the atoms to undergo transitions to higher energy levels, The excited mercury atoms can reach lower energy states through a variety of transitions, Characteristic photons emitted through this process have wavelengths of 254 am and 185 am. The emitted photons strike a fluorescent coating on the inside surface of the glass bulb. The fluorescent coating then emits electromagnetic radiation that illuminates the picture. 12. The maximum number of electrons that would move through the bulb in 1.20 x 10" so operation is A. 7.50 x 1020 electrons B. 3.75 x 1018 electrons C. 3.13 x 1010 electrons D. 2.60 x 1014 electrons The difference in energy of the energy states associated with a characteristic photo that has the higher energy is A. 7.83 x 10-28 J 1.08 x 10-27 J 7.83 x 10-19 J 1.08 x 10-18 J