1) A rod attracts a positively charged sphere hanging from a string. The rod isA. either D or EB. either C or DC. negatively chargedD. neutralE. positively charged2) Determine the magnitude and direction of the electric field at thepoint labeled "2" in the figure.A. 2500 N/C, points down the pageB. 5000 N/C, points down the pageC. ON/CD. 2500 N/C, points up the pageE. 5000 N/C, points up the page3) Consider the combination of capacitors shown in thefigure. Find the equivalent capacitance of this network ofcapacitors.A. 8.2 µFB. 3.9 µFC. 3.2 µFD. 5.1 µFE. 2.5 µF6.0 μFㅏ4) The battery in the circuit shown has a potential difference of 12 V.What is the current that the battery supplies to this circuit?A. 1.71 AB. 84.0 AC. 0.583 AD. 5.20 AE. 12.0 A5) In the circuit shown in the figure to the right, what is the potentialdifference across the 4-Q resistor?A. 3 VB. 5 VC. 8 VD. 10 VE. 12 V15 V2I8.0 μFO V25 V75 V50 V1 cmwwwww1 cm3.0 μF7Ω4928 Ω 976) The figure shows a negatively charged particle moving to theright through a magnetic field that points up the page. What is thedirection of the force that the magnetic field exerts on thischarged particle?A. Out of the pageB. Into the pageC. Up the pageD. Down the pageE. The force is zeroout of thein the circult toB7) A metal sphere A has a net charge of +10 nC. An identical metal sphere B has a net charge of -4 nC.The spheres are brought into contact. What is the final charge state of each sphere?and 1601 3010190A. QA = +1 nC and QB = +1 nCB. QA = -4 nC and QB = +10 nCC. QA = +3 nC and QB = +3 nCD. QA = 0 nC and QB = 0 nCE. QA = -3 nC and QB = -3 nCtheOTT8) A negative charge moves between two plates of a parallel-plate capacitor asshown in the figure to the right. Which of the following statements best describesthis situation in terms of energy?A. the kinetic energy increases and the potential energy decreasesB. the kinetic energy decreases and the potential energy increasesC. the kinetic energy is constant and the potential energy is constantD. the kinetic energy decreases and the potential energy decreasesE. the kinetic energy increases and the potential energy increases9) Suppose a capacitor is connected to a battery and allowed to fully charge. Thenthe capacitor is disconnected from the battery and a dielectric is inserted betweenthe plates. How will this affect the potential difference between the plates?A. The potential difference will increase012010 8HadrofHB. The potential difference will remain constantC. The potential difference will decreaseD. The potential difference will oscillate in timeE. Depending on the value of the dielectric's dielectric constant, the potential difference could increaseor decreaseтаle ni nosoubnoo 610% (PI10) A 4.5 V potential difference is applied between the ends of a 0.80 mm diameter, 25 m long copperwire. What is the current in the wire? The resistivity of copper is 1.7×108 m.A. 0.19 AB. 2.9 AC. 9.2 AD. 3.8 AE. 5.3 ASast6lg++++++++++++++++

1) A rod attracts a positively charged sphere hanging from a string. The rod is A. either D or E B. either C or D C. negatively charged D. neutral E. positively charged 2) Determine the magnitude and direction of the electric field at the point labeled "2" in the figure. A. 2500 N/C, points down the page B. 5000 N/C, points down the page C. ON/C D. 2500 N/C, points up the page E. 5000 N/C, points up the page 3) Consider the combination of capacitors shown in the figure. Find the equivalent capacitance of this network of capacitors. A. 8.2 μF B. 3.9 μF C. 3.2 µF D. 5.1 μF E. 2.5 μF 6.0 μF ㅏ 4) The battery in the circuit shown has a potential difference of 12 V. What is the current that the battery supplies to this circuit? A. 1.71 A B. 84.0 A C. 0.583 A D. 5.20 A E. 12.0 A 5) In the circuit shown in the figure to the right, what is the potential difference across the 4-2 resistor? A. 3 V B. 5 V C. 8 V D. 10 V E. 12 V 15 V N Hilt 8.0 μF OV 25 V 75 V 50 V 1 cm www 1 cm 3.0 μF 792 4Ω 8 Ω

1) A rod attracts a positively charged sphere hanging from a string. The rod is A. either D or E B. either C or D C. negatively charged D. neutral E. positively charged 2) Determine the magnitude and direction of the electric field at the point labeled "2" in the figure. A. 2500 N/C, points down the page B. 5000 N/C, points down the page C. ON/C D. 2500 N/C, points up the page E. 5000 N/C, points up the page 3) Consider the combination of capacitors shown in the figure. Find the equivalent capacitance of this network of capacitors. A. 8.2 μF B. 3.9 μF C. 3.2 µF D. 5.1 μF E. 2.5 μF 6.0 μF ㅏ 4) The battery in the circuit shown has a potential difference of 12 V. What is the current that the battery supplies to this circuit? A. 1.71 A B. 84.0 A C. 0.583 A D. 5.20 A E. 12.0 A 5) In the circuit shown in the figure to the right, what is the potential difference across the 4-2 resistor? A. 3 V B. 5 V C. 8 V D. 10 V E. 12 V 15 V N Hilt 8.0 μF OV 25 V 75 V 50 V 1 cm www 1 cm 3.0 μF 792 4Ω 8 Ω

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

1) A rod attracts a positively charged sphere hanging from a string. The rod is
A. either D or E
B. either C or D
C. negatively charged
D. neutral
E. positively charged
2) Determine the magnitude and direction of the electric field at the
point labeled "2" in the figure.
A. 2500 N/C, points down the page
B. 5000 N/C, points down the page
C. ON/C
D. 2500 N/C, points up the page
E. 5000 N/C, points up the page
3) Consider the combination of capacitors shown in the
figure. Find the equivalent capacitance of this network of
capacitors.
A. 8.2 µF
B. 3.9 µF
C. 3.2 µF
D. 5.1 µF
E. 2.5 µF
6.0 μF
ㅏ
4) The battery in the circuit shown has a potential difference of 12 V.
What is the current that the battery supplies to this circuit?
A. 1.71 A
B. 84.0 A
C. 0.583 A
D. 5.20 A
E. 12.0 A
5) In the circuit shown in the figure to the right, what is the potential
difference across the 4-Q resistor?
A. 3 V
B. 5 V
C. 8 V
D. 10 V
E. 12 V
15 V
2
I
8.0 μF
O V
25 V
75 V
50 V
1 cm
www
ww
1 cm
3.0 μF
7Ω
492
8 Ω

97
6) The figure shows a negatively charged particle moving to the
right through a magnetic field that points up the page. What is the
direction of the force that the magnetic field exerts on this
charged particle?
A. Out of the page
B. Into the page
C. Up the page
D. Down the page
E. The force is zero
out of the
in the circult to
B
7) A metal sphere A has a net charge of +10 nC. An identical metal sphere B has a net charge of -4 nC.
The spheres are brought into contact. What is the final charge state of each sphere?
and 1601 3010190
A. QA = +1 nC and QB = +1 nC
B. QA = -4 nC and QB = +10 nC
C. QA = +3 nC and QB = +3 nC
D. QA = 0 nC and QB = 0 nC
E. QA = -3 nC and QB = -3 nC
the
OTT
8) A negative charge moves between two plates of a parallel-plate capacitor as
shown in the figure to the right. Which of the following statements best describes
this situation in terms of energy?
A. the kinetic energy increases and the potential energy decreases
B. the kinetic energy decreases and the potential energy increases
C. the kinetic energy is constant and the potential energy is constant
D. the kinetic energy decreases and the potential energy decreases
E. the kinetic energy increases and the potential energy increases
9) Suppose a capacitor is connected to a battery and allowed to fully charge. Then
the capacitor is disconnected from the battery and a dielectric is inserted between
the plates. How will this affect the potential difference between the plates?
A. The potential difference will increase
01
2010 8
Hadrof
H
B. The potential difference will remain constant
C. The potential difference will decrease
D. The potential difference will oscillate in time
E. Depending on the value of the dielectric's dielectric constant, the potential difference could increase
or decrease
та
le ni nosoubnoo 610% (PI
10) A 4.5 V potential difference is applied between the ends of a 0.80 mm diameter, 25 m long copper
wire. What is the current in the wire? The resistivity of copper is 1.7×108 m.
A. 0.19 A
B. 2.9 A
C. 9.2 A
D. 3.8 A
E. 5.3 A
Sast6lg
++++++++++++++++

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