13) Can you identify something that makes the neon bulb in electrostatics II light briefly, and makes the #14 bulb in circuit one light briefly? If so, say what. [1] 14) Is there a difference between the speed at which the charged particles move and the speed at which electricity flows? Explain. For circuit 1 (charging and discharging); 15) Compare the following when the capacitors are charging with when they are discharging; sense of the rotation of the compass size of the deflection of the compass brightness of the bulbs [1] [1] [1] [1] the time(s) for which the bulbs light [1] 16) From any evidence that you have seen in this lab, how much electricity is permanently lost? Which of the preceding observations suggest your answer? Ask your TA to check your previous answer 17) How long do the #48 bulbs (in circuit 2) light during charging or during discharging? (Give an approximate time to the nearest half second.) 3 Electricity II UTD physics Spring 2023 18) How many degrees is the maximum deflection of the compass in circuit 2? [2] [1] [1] In circuit 3: 19) How long do the #14 bulbs light during the discharge? (Give an approximate time to the nearest half- second.) 20) How many degrees is the maximum deflection of the compass in circuit 3? 21) Compare the following in circuits 2 and circuit 3; the maximum deflection of the compass [1] [1] [1] the time during which the #14 bulbs light (in circuit 3) and the time during which the #48 bulbs light (in circuit 2) [1] 22) Do these observations suggest anything about the maximum size of the flow through the two types of bulb? If so, say which two observations suggest this. 23) What difference between circuits 2 and 3 might cause the difference in flow? In circuit 4: 4 Electricity II UTD physics Spring 2023 [1] 24) What can you say about the size of the flow as judged by the compass (placed in all four positions)? [1] 25) Which bulb has the greatest maximum brightness; the #14 bulb or the #48 bulb? [1] 26) Does different brightness indicate different flow in this case? [1] For the capacitor: 27) Do the bulbs light? [1] 28) Compare the time for the capacitor to discharge through a piece of wire, with the time for the capacitor to discharge through the bulbs. [1] 29) Can you conclude anything about the size of the flow through the wire as compared with the size of the flow through the bulbs? [1] Electricity II UTD physics - Spring 2023 30) Suppose that the hypothesis (of their being obstacles of various sizes to the flow) is not false. What can be predicted about the relative sizes of the obstacles presented by an alligator-to-alligator cable, a #14 bulb and a #48 bulb? [2] 9) Suppose that one particle of the flow approaches a plate of a capacitor. Explain what happens to the other plate of the capacitor. [1] [1] 10) In the previous question, you have said how the other plate of a capacitor is affected. But in circuit 1, this other plate is connected to wire and to a bulb. How will the wire & bulb be affected when a charge approaches? 11) Will the flow through bulb B be as big as the flow through bulb A? Explain. _[1] [1] 12) What caused the neon bulb in electrostatics II to light briefly? [1]