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, Section 1: Multiple Choice (40 Points) 16 A wedge is placed in region of uniform...
Please explain your reasoning. Bulb 1 2. A circuit consisting of 5 identical light bulbs, a...
Please explain your reasoning.
Bulb 1 2. A circuit consisting of 5 identical light bulbs, a battery and a switch is shown. When the switch, S, is closed, what can we say about the brightness of the bulbs? Bulb 2 Switch Bulb 3 a. Bulb 4 goes out b. Bulb 3 gets dimmer c. Bulb 1 is brighter than bulb 3 d. Bulb 4 is brighter than bulb 5 e Bulb 1 gets brighter Bulb 5 Bulb 4
(A) For circuit 2 above, rank the bulbs in order of brightness. ( use symbols <,>,=...
(A) For circuit 2 above, rank the bulbs in order of
brightness. ( use symbols <,>,= )
(B) For circuit 3 above, rank the bulbs in order of
brightness. ( use symbols <,>,= )
(C) if bulb B is removed from circuit 2, what will happen to
bulbs A and C? (Choose all that apply)
•A stays the same
•A goes out
•A gets brighter
•A gets dimmer
•C stays the same
• C goes out
• C gets brighter...
Four identical light bulbs are in a circuit as shown. After I throw the switch, what...
Four identical light bulbs are in a circuit as shown. After I throw the switch, what happens to the brightness of the bulbs A, B, and C? Image size: SML Max A Select the correct answer O All stay the same O All get brighter A gets dimmer, B and C get bright Your Answer O A gets brighter, B and C get dimmer O A stays the same, B and C get dimmer O All get dimmer
The bulbs in the given circuit are identical and the battery is ideal. Part a onsider...
The bulbs in the given circuit are identical and the battery is ideal. Part a onsider the circuit as shown. Figure 2 i. Rank bulbs A, B, and C in order of brightness. Explain how you determined your answer. ii. Rank the voltages across the bulbs. Explain. iii. Write an equation that relates the voltage across bulbs A and B to the battery voltage. iv. Is the voltage across bulb A greater than, less than, or equal to one half...
4. Consider the identical light bulbs (e) in the circuit to the right. Circuits 1, 2,...
4. Consider the identical light bulbs (e) in the circuit to the right. Circuits 1, 2, 3, 4 are series circuits". I? 2 Circuits 5, 6, and 8 are "parallel circuits". 4 Some circuits have one battery, others have two batteries. 6 Now close the switch. Using the "brightness" of the bulb in the simple circuit 1 as the standard for normal" brightness, answer the following questions by specifying the circuit(s) number(s) 5 7 (a) Which circuits had bulbs that...
1. A student observes the relative brightness of bulbs A and B with the switch both...
1. A student observes the relative brightness of bulbs A and B with the switch both open and closed. She finds the following: <(6 Switch open: Bulbs A and B have same brightness. Switch closed: Bulb A is brighter than when the switch was open; Bulb B does not light at all. a. With the switch closed, does current divide and recombine at the junctions? Does it divide evenly or unevenly? Explain. b. When the switch is closed, does the...
Problem 7 A resistor with resistance R, battery with voltage AV, capacitor with capacitance C, and...
Problem 7 A resistor with resistance R, battery with voltage AV, capacitor with capacitance C, and switch are connected in series. The switch is closed at t = 0. The time constant of the circuit is T. What is the initial voltage across the resistor immediately after the student is closed? Select One of the Following: (a) o (b) AV (c) TAV (d) AV/T (e) AV/(R+C) Problem 8 A capacitor is charged to potential difference V and then allowed to...
Problem 3 (Explanation Task) X (It is not necessary to use the solution format for this...
Problem 3 (Explanation Task) X (It is not necessary to use the solution format for this problem.) 2 1. Consider the circuit shown at right, which is a variant of the circuit from studio. All bulbs are identical, and all batteries are ideal and identical. (Note that the orientation of battery D has changed.) Y D A. Is bulb 2 brighter than, dimmer than, or as bright as bulb 1? Explain your reasoning Z B. Sketch appropriate voltage diagrams for...
A circuit is constructed as shown above. There are four voltage sources as labeled each with...
A circuit is constructed as shown above. There are four voltage sources as labeled each with given voltage V_1 or V_2 as shown. Assume that V_1 > V_2. Assume each bulb can be modeled as an identical resistors of resistance R, same as each resistor. (a): Assume that both switches are open as shown. In terms of the parameters given, calculate the current though Bulb B. Explain your work. (b): Assume that both switches are open as shown. In terms...
Please explain your reasoning.
Bulb 1 2. A circuit consisting of 5 identical light bulbs, a battery and a switch is shown. When the switch, S, is closed, what can we say about the brightness of the bulbs? Bulb 2 Switch Bulb 3 a. Bulb 4 goes out b. Bulb 3 gets dimmer c. Bulb 1 is brighter than bulb 3 d. Bulb 4 is brighter than bulb 5 e Bulb 1 gets brighter Bulb 5 Bulb 4
(A) For circuit 2 above, rank the bulbs in order of
brightness. ( use symbols <,>,= )
(B) For circuit 3 above, rank the bulbs in order of
brightness. ( use symbols <,>,= )
(C) if bulb B is removed from circuit 2, what will happen to
bulbs A and C? (Choose all that apply)
•A stays the same
•A goes out
•A gets brighter
•A gets dimmer
•C stays the same
• C goes out
• C gets brighter...
Four identical light bulbs are in a circuit as shown. After I throw the switch, what happens to the brightness of the bulbs A, B, and C? Image size: SML Max A Select the correct answer O All stay the same O All get brighter A gets dimmer, B and C get bright Your Answer O A gets brighter, B and C get dimmer O A stays the same, B and C get dimmer O All get dimmer
The bulbs in the given circuit are identical and the battery is ideal. Part a onsider the circuit as shown. Figure 2 i. Rank bulbs A, B, and C in order of brightness. Explain how you determined your answer. ii. Rank the voltages across the bulbs. Explain. iii. Write an equation that relates the voltage across bulbs A and B to the battery voltage. iv. Is the voltage across bulb A greater than, less than, or equal to one half...
4. Consider the identical light bulbs (e) in the circuit to the right. Circuits 1, 2, 3, 4 are series circuits". I? 2 Circuits 5, 6, and 8 are "parallel circuits". 4 Some circuits have one battery, others have two batteries. 6 Now close the switch. Using the "brightness" of the bulb in the simple circuit 1 as the standard for normal" brightness, answer the following questions by specifying the circuit(s) number(s) 5 7 (a) Which circuits had bulbs that...
1. A student observes the relative brightness of bulbs A and B with the switch both open and closed. She finds the following: <(6 Switch open: Bulbs A and B have same brightness. Switch closed: Bulb A is brighter than when the switch was open; Bulb B does not light at all. a. With the switch closed, does current divide and recombine at the junctions? Does it divide evenly or unevenly? Explain. b. When the switch is closed, does the...
Problem 7 A resistor with resistance R, battery with voltage AV, capacitor with capacitance C, and switch are connected in series. The switch is closed at t = 0. The time constant of the circuit is T. What is the initial voltage across the resistor immediately after the student is closed? Select One of the Following: (a) o (b) AV (c) TAV (d) AV/T (e) AV/(R+C) Problem 8 A capacitor is charged to potential difference V and then allowed to...
Problem 3 (Explanation Task) X (It is not necessary to use the solution format for this problem.) 2 1. Consider the circuit shown at right, which is a variant of the circuit from studio. All bulbs are identical, and all batteries are ideal and identical. (Note that the orientation of battery D has changed.) Y D A. Is bulb 2 brighter than, dimmer than, or as bright as bulb 1? Explain your reasoning Z B. Sketch appropriate voltage diagrams for...
A circuit is constructed as shown above. There are four voltage sources as labeled each with given voltage V_1 or V_2 as shown. Assume that V_1 > V_2. Assume each bulb can be modeled as an identical resistors of resistance R, same as each resistor. (a): Assume that both switches are open as shown. In terms of the parameters given, calculate the current though Bulb B. Explain your work. (b): Assume that both switches are open as shown. In terms...
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