Quiz_6_Solutions

Quiz_6_Solutions - Physics ZB-Sectinn 8 Electricity and...

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Unformatted text preview: Physics ZB-Sectinn 8 Electricity and Magnetism Prat luan K. Schufler Hunter 2086 TEST 6 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Figure 1 r 12-1 I*2 114: R1 Fl 1) In Figure 1, the circuit R is a variable resistance. As R is decreased A) 11 increases, 12 decreases. B) 11 decreases, 12 increases. C) 11 decreases, 12 decreases. 'D) 11 remains unchanged, [2 increases. E) 11 increases, 12 increases.' Figure 2 i—-“‘1SUV—'——3" Three light bulbs, A, B, and C, have electrical ratings as follows: Bulb A — 96 W, 2.0 A Bulb B - 200 V, 250 W Bulb C - 120 V, 0.5 A The three bulbs are connected in a circuit, which is across a ISO-V line, as shown. Assume the filament resistances of the light bulbs are constant and independent of operating conditions. 2) In Figure 2, the equivalent resistance of the circuit is closest to: A) 180 Q B) 160 Q C) 120 9 D) 140 Q E) 100 9 Name Code Number Version A 3) Which of the following is an accurate statement? A) When a lamp and a radio are plugged into a household receptacle, they are connected in series. B) If any of the three wires leading to a household appliance were to have the insulation rubbed off, exposing the bare metal wire, touching one of these bare wires would expose you to the danger of electrocution (should you be standing barefoot on a damp concrete floor). C) The wires which are grounded in household circuits carry no current. D) Modern household plugs have three prongs. Two of these are connected to ground wires. B) When a household circuit is rated at 20 A, this means the wires in the circuit will not carry more than 20 A. Figure 3 0,30MQ initially, for the circuit shown, the switch 5 is open and the capacitor is uncharged. The switch 5 is closed at time t = 0. 4) In Figure 3 when the time t is equal to 20.0 s, the potential difference across the resistor is closest to: A) 22V B) 18V C) 24V D) 16V E) 20V Figure 4 A multiloop circuit is given. It is not necessary to solve the entire circuit. 5) In Figure 4, the current 12 is closest to: A) -4 A B) zero C) +10 A D) —10 A E) +4 A Figure 5 T lo ‘ (cutuaweay x x l?" E (an paper) 3:): View)\ 3g ‘ x Capacitor plates 6) In Figure 5 is a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field E which is oriented perpendicular to a uniform magnetic field B. 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Quiz_6_Solutions - Physics ZB-Sectinn 8 Electricity and...

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