Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 6EAP
What is the magnitude of the potential difference across each resistor in FIGURE EX28.6?
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How long will it take a charged 80 µF capacitor to lose 33% of its initial energy when it is allowed to
discharge through a 45 Q resistor?
O a. 2.00 ms
O b. 0.72 ms
O. 1.44 ms
O d. 3.99 ms
O e. 0.44 ms
la. This resistor has a resistance of 48002, and
32mA of current flows to the left into it. The
right end of the resistor is at a potential of VR=
12.5V. What is the potential difference AV
across the resistor?
-
VL? resistor
1b. What is the potential VL of the left end of the resistor?
1c. What is the power output by the resistor?
R = 4800
1d. What is the current that flows out of the resistor?
I = 32mA
o at io.
- VR=12.5V
or
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Current Iin flows into three resistors connected together one after the other as shown. The accompanying graph shows the value of the potential as a function of position.a. Is Iout greater than, less than, or equal to Iin ? Explain.b. Rank in order, from largest to smallest, the three resistances R1 , R2 , and R3. Explain.
Chapter 28 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Ch. 28 - Rank in order, from largest to smallest, the...Ch. 28 - The tip of a flashlight bulb is touching the top...Ch. 28 - The wire is broken on the right side of the...Ch. 28 - The circuit of FIGURE Q28.4 has two resistors,...Ch. 28 - The circuit of FIGURE Q28.5 has two resistors,...Ch. 28 - Rank in order, from largest to smallest, the...Ch. 28 - Are the two resistors in FIGURE Q28.7 in series or...Ch. 28 - A battery with internal resistance r is connected...Ch. 28 - Initially bulbs A and B in FIGURE Q28.9 are...Ch. 28 - Bulbs A. B, and C in FIGURE Q28.1O axe identical,...
Ch. 28 - Bulbs A and B in FIGURE Q28.11 are identical, and...Ch. 28 - Prob. 12CQCh. 28 - FIGURE Q28.13 shows the voltage as a function of...Ch. 28 - Prob. 1EAPCh. 28 - Draw a circuit diagram for the circuit of FIGURE...Ch. 28 - Prob. 3EAPCh. 28 - Prob. 4EAPCh. 28 - a. What are the magnitude and direction of the...Ch. 28 - What is the magnitude of the potential difference...Ch. 28 - Prob. 7EAPCh. 28 - Prob. 8EAPCh. 28 - A 60 W lightbulb and a 100 W lightbulb are placed...Ch. 28 - Prob. 10EAPCh. 28 - The five identical bulbs in FIGURE EX2B.11 are all...Ch. 28 - Prob. 12EAPCh. 28 - Prob. 13EAPCh. 28 - A typical American family uses kWh of electricity...Ch. 28 - A waterbed heater uses 450 W of power. It is on 25...Ch. 28 - Prob. 16EAPCh. 28 - Prob. 17EAPCh. 28 - Prob. 18EAPCh. 28 - 19. The voltage across the terminals of a V...Ch. 28 - Prob. 20EAPCh. 28 - Prob. 21EAPCh. 28 - 22. Two of the three resistors in FIGURE EX28.22...Ch. 28 - What is the value of resistor R in FIGURE EX28.23?Ch. 28 - Prob. 24EAPCh. 28 - What is the equivalent resistance between points a...Ch. 28 - What is the equivalent resistance between points a...Ch. 28 - Prob. 27EAPCh. 28 - Prob. 28EAPCh. 28 - Prob. 29EAPCh. 28 - Prob. 30EAPCh. 28 - Prob. 31EAPCh. 28 - Prob. 32EAPCh. 28 - Prob. 33EAPCh. 28 - What is the time constant for the discharge of the...Ch. 28 - A 10F capacitor initially charged to 20C is...Ch. 28 - Prob. 36EAPCh. 28 - Prob. 37EAPCh. 28 - A capacitor is discharged through a resistor. The...Ch. 28 - Prob. 39EAPCh. 28 - 40. A refrigerator has a 1000 W compressor, but...Ch. 28 - Prob. 41EAPCh. 28 - An electric eel develops a potential difference...Ch. 28 - You have a resistor, a resistor, a resistor, and a...Ch. 28 - A 2.0 -m-long, 1.0 -mm-diameter wire has a...Ch. 28 - What is the equivalent resistance between points a...Ch. 28 - What are the emf and internal resistance of the...Ch. 28 - A string of holiday lights can be wired in series,...Ch. 28 - The circuit shown in FIGURE P28.48 is inside a 15...Ch. 28 - Suppose you have resistors 2.5,3.5, and 4.5 and a...Ch. 28 - A lightbulb is in series with a resistor. The...Ch. 28 - Prob. 51EAPCh. 28 - Prob. 52EAPCh. 28 - Prob. 53EAPCh. 28 - Prob. 54EAPCh. 28 - What are the battery current Ibatand the potential...Ch. 28 - A battery is a voltage source, always providing...Ch. 28 - A circuit you’re building needs an ammeter that...Ch. 28 - For the circuit shown in FIGURE P28.58, find the...Ch. 28 - For the circuit shown in FIGURE P28.59, find the...Ch. 28 - For the circuit shown in FIGURE P28.60, find the...Ch. 28 - What is the current through the 20 resistor in...Ch. 28 - For the circuit shown in FIGURE P28.62, find the...Ch. 28 - What is the current through the 10 resistor in...Ch. 28 - For what emf does the 200 resistor in FIGURE...Ch. 28 - Prob. 65EAPCh. 28 - Prob. 66EAPCh. 28 - Prob. 67EAPCh. 28 - II A circuit you're using discharges a 20F...Ch. 28 - A 150F defibrillator capacitor is charged to 1500V...Ch. 28 - Prob. 70EAPCh. 28 - A 0.25F capacitor is charged to 50 V. It is then...Ch. 28 - Prob. 72EAPCh. 28 - Prob. 73EAPCh. 28 - The capacitors in FIGURE P28.74 are charged and...Ch. 28 - Prob. 75EAPCh. 28 - Prob. 76EAPCh. 28 - Prob. 77EAPCh. 28 - Prob. 78EAPCh. 28 - Prob. 79EAPCh. 28 - Prob. 80EAPCh. 28 - Prob. 81EAPCh. 28 - Prob. 82EAP
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- can u help me? tnxarrow_forwardA capacitor of capacitance C is connected to four resistors R = 62 R, = 4O R, =90 and R 60 %3D and a battery V= 36 V with an open %3! switch. R, R. R R. What is the voltage across R1 when the switch has just been closed? Select one: O a 21.6 V O b. 0V O c. 14.4 V O d. 36 V The following is a part of a circuit. The potential of V = 200 V is provided at point a that is connected to resistors = 40 2=60 and 3 =9 12:12 PM 5/13/2021 近arrow_forwardThe question is in the screenshot.arrow_forward
- what is the answer!?arrow_forwardHow long will it take a charged 80 µF capacitor to lose 63% of its initial energy when it is allowed to discharge through a 45 O resistor? O a. 1.09 ms Ob. 1.66 mS Oc179 mS Od.0.83ms Oe. 3.58 msarrow_forwardA resistor R1 is connected in parallel with a second resistor R2 = 0.5R1. This parallel configuration is then connected in series with R3 = 2R1 and across a cell with voltage V = 9V. What is the potential difference across the parallel resistor pair? Select one: a. 1.29 V b. 1.5 V c. 2.25 V d. 7.5 Varrow_forward
- I am having trouble, can I please get some assistance with these questions! Four resistors with resistance, R1= 6ohms, R2= 4ohms, R3= 5ohms, and R4= 3ohms are arranged in the circuit to the right along woth a battery with a potential difference of 12V. A. What is the equivalent resistance of the entire circuit? B. What is the potential across and the current through resistor R1? C. What is the potential across and the current through resistor R4? D. What is the power dissipated by resistor R1?arrow_forwardBuild me up batter cap. A 1000. μ F uncharged capacitor is connected in series with a 2.00kΩ resistor. The capacitor will be charged using a 5 V battery such that the whole circuit is connected in series. At t=0, the switch is closed. What will be the charge when t=1.5τ?arrow_forwardSwitch S in in the figure is closed at time t = 0, to begin charging an initially uncharged capacitor of capacitance C = 15.1 µF through a resistor of resistance R = 22.4 2. At what time is the potential across the capacitor equal to that across the resistor? Rarrow_forward
- A capacitor of capacitance C is connected to four resistors = 62, R,= 40 R, = 90 and R4 = 652 and a battery V= 36 V with an open switch. R, R, C R R2 What is the current through Ki when the switch has been closed for a long period of time? Select one: O a. 3.6 A O b. 6 A O C. OA Od. 2.4 A 12:11 PM 5/13/2021arrow_forwardTwo resistors, R1 = 50 Ω and R2 = 17 Ω are connected in series to a battery providing voltage ΔVbat = 3.1 V. What is the potential difference measured across the resistor R2?arrow_forwardSN 10. A 11.0 μF capacitor is connected in series to a 50.0-V battery, a is flowing through the resistor, 5.00 ms after closing the switch? Amp resistor, and a switch. What is the current that 550-52 resis 0 ssf60 ssf60 ss. 50 ssf60arrow_forward
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