Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 20.1, Problem 2TH
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Find the current through each of the resistors in the circuit below. Give both the magnitude and direction of current flow. Give answers in form: "3.5Amps Right" or "2.25Amps Left" (note: spaces are important for the computer to give you credit.) Answer boxes are for current through resistors 3 Ohm, 6 Ohm, and 2 Ohm in that order.
Explain how to find an internal resistance of a battery given two resistors, batteries, and a multimeter(s). Draw-up procedure on how to perform this experiment. Include a circuit(s) diagram to illustrate your procedure.
Click the link below:
https://phet.colorado.edu/sims/html/resistance-in-a-wire/latest/resistance-in-a-wire_en.html
Try increasing the resistivity of the resistor. The picture at the bottom of the screenshows what would physically happen to the resistor.a) How does this change the “look” of the resistor?
b) Describe how that relates to the formula you just wrote (direct, or inverse).
c) What happens to the value of “R” (Resistance)?
d) What would you have to do to change the resistivity of a resistor in a circuit?
Chapter 20 Solutions
Tutorials in Introductory Physics
Ch. 20.1 - In tutorial, you compared the relative brightness...Ch. 20.1 - Use the model for electric current to rank the...Ch. 20.1 - Rang the brightness of the bulbs. Explain your...Ch. 20.1 - A wire is now added to the circuit as shown. i....Ch. 20.1 - Rank the networks according to their equivalent...Ch. 20.1 - How does adding a single bulb to a circuit in...Ch. 20.1 - How does adding a single bulb to a circuit in...Ch. 20.1 - The network AE above are connected, in turn, to...Ch. 20.1 - Rank the bulbs in order from brightest to dimmest....Ch. 20.1 - Suppose that a switch has been added to the...
Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - In the circuit at right, the voltage across bulb 1...Ch. 20.2 - Prob. 2bTHCh. 20.2 - Box A and box B are now interchanged. It is...Ch. 20.2 - Consider the circuit as shown. i. Rank bulbs A, B,...Ch. 20.2 - b. A student cuts the write between bulbs A and C...Ch. 20.2 - Consider the following discussion between two...Ch. 20.2 - Rank bulbs 16 in order or brightness. Explain your...Ch. 20.2 - Rank the voltages across the bulbs. Explain your...Ch. 20.2 - Write an equation that relates the voltage across...Ch. 20.2 - Bulb 1 is removed from its socket. i. Does the...Ch. 20.3 - Describe the behavior of the bulb in the two...Ch. 20.3 - A second identical bulb is flow added to the...Ch. 20.3 - Just after the switch is closed: • what is the...Ch. 20.3 - A long time after the switch is closed: • rank the...Ch. 20.3 - Summarize your results by describing the behavior...
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- See the attached picture of an electrical circuit. Find the voltage drops across each resistor. Find the currents through each resistor. When solving, show your directions for each current and the direction of the voltage drops across each resistor. Thank youarrow_forwardDescribe two different arrangements of resistors that would each have a total resistance of about 500Ω, as instructed below. Be specific about what resistance values you would use in each arrangement based on what is available in the course lab kit. a) Describe an arrangement using resistors connected to each other in series. b) Describe an arrangement of resistors connected in parallel with each other. Resources : 2k ohms resistor 1k ohms resistor 330 ohms resistorarrow_forwardDoes the total resistance of a circuit increase or decrease when adding resistors in series? Explain your reasoning using the potential path(s) of the current.arrow_forward
- Neglect internal resistances in the figure on the right. consisting of two batteries (batteries) and two resistors A single loop circuit is given. On using the information provided current, power transferred to resistors and batteries Calculate the power they put into the circuit.arrow_forwardOn the basis of your second set of data, are there any patterns to the way that currents behave in a parallel circuit? At this time you should be able to write the general characteristics of currents, voltages and resistances in parallel circuits.arrow_forwardUse Kirchoff's laws to find the currents in the circuit. Please include steps, formulas and explanations. Thank you very much for your time.arrow_forward
- Determine the currents 1₁, 12, and is for the electrical network shown in the figure. (Assume V₁ = 3 V and V/₂ = 4 V.) 1₁ = A 1₂ = A 15 = www R₁ = 40 R₂=30 h ww R₂ = 10 A V₂arrow_forwardFor the circuit below. Hint, current in inversely proportional to resistance. Ix/IT=RT/Rx, see "Current Divider Rule" in your notes. For this problem. Determine the equivalent resistance in each set of branches, for the I1 branch it would be 1/RE=1/8 +1/8. Split the total (6A) current between I1 and I2 using the current divider rule. Then apply the current divider rule one more time to split I1 between I3 and the other 8 Ω resistor. Determine I1. Determine I2. Determine I3. Determine I4.arrow_forwardWhat is the equivalent resistance of a 100 kΩ resistor and a 140 kΩ resistor in parallel? I first don't how the diagram would look, nor the how to determine equivalent resistance.arrow_forward
- Plot voltage versus current for the following data. Then, draw a best-fit line through the points, and calculate the slope. Be sure to label your graph completely and correctly. SHOW ALL WORK FOR YOUR SLOPE CALCULATION.(clearly show 2 points you chose on the line of your graph for slope calculation) Voltage Unit :V current unit: mA 0 2.9 1.1 8.8 3.4 25 4.8 34 6.5 40 7.5 47 9.2 58 11.3 61 Show your work below for the slope. Slope=arrow_forwardFor the circuit shown in the figure (Figure 1), find the current through and the potential difference across each resistor. a) Find the current through each resistor. b) Find the potential difference across each resistor.arrow_forwardDescribe the relationship between resistance, cross-sectionalarea and length of the wire using the template below.arrow_forward
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