Very large capacitors have been considered as a means for storing electrical energy.If we constructed a very large parallel-plate capacitor of plate area 10 m2 using paper (κ = 3.7)of thickness 1.0 mm as a dielectric,how much electrical energy would it store at a plate voltage of 5000 V? (ε0 = 8.85 × 10−12 C2/N⋅m2)

A) 4.1 J B) 8200 J C) 0.41 J D) 82,000 J A) 4.1 J B) 8200 J C) 0.41 J D) 82,000 J

If C1 = 25 µF,C2 = 20 µF,C3 = 10 µF,and ΔV0 = 42 V,determine the energy stored by C3.

A) 3.6 mJ B) 0.32 mJ C) 1.8 mJ D) 0.40 mJ A) 3.6 mJ B) 0.32 mJ C) 1.8 mJ D) 0.40 mJ

How much charge can be placed on a capacitor of plate area 20 cm2 with air between the plates before it reaches "atmospheric breakdown" where E = 3.0 × 106 V/m? (ε0 = 8.85 × 10−12 C2/N⋅m2)

A) 6.6 × 10−7 C B) 2.7 × 10−8 C C) 5.3 × 10−8 C D) 4.0 × 10−7 C A) 6.6 × 10−7 C B) 2.7 × 10−8 C C) 5.3 × 10−8 C D) 4.0 × 10−7 C

A solid metal sphere of radius r is inside a metal concentric spherical shell of inner radius 2r and outer radius 3r.A charge is place on the solid metal sphere and it is found that the potential at its surface is V1 (at r)and that the potential at the outer surface of the spherical shell is V3 (at 3r).In terms of V1 and V3,what is the potential at the inner surface of the metal shell (at 2r)?

A) 3V1/2 B) V3 C) V1 D) 2V3/2 A) 3V1/2 B) V3 C) V1 D) 2V3/2

Exam 18: Direct-Current Circuits Sources of EMF: Part A

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Two capacitors with capacitances of 1.5 μC and 0.25 μF,respectively,are connected in parallel.The system is connected to a 40-V battery.What charge accumulates on the 1.5-μF capacitor?

(Multiple Choice)

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Question 21

Very large capacitors have been considered as a means for storing electrical energy.If we constructed a very large parallel-plate capacitor of plate area 10 m² using paper (κ = 3.7)of thickness 1.0 mm as a dielectric,how much electrical energy would it store at a plate voltage of 5000 V? (ε₀ = 8.85 × 10−¹² C²/N⋅m²)

(Multiple Choice)

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Question 22

If C₁ = 25 µF,C₂ = 20 µF,C₃ = 10 µF,and ΔV₀ = 42 V,determine the energy stored by C₃.

(Multiple Choice)

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Question 23

Two capacitors with capacitances of 1.0 μC and 0.50 μF,respectively,are connected in series.The system is connected to a 150 V battery.What charge accumulates on the 1.0-μF capacitor?

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Question 24

A uniform electric field,with a magnitude of 600 N/C,is directed parallel to the positive x axis.If the potential at x = 4.0 m is 1000 V,what is the change in potential energy of a proton as it moves from x = 4.0 m to x = 1.0 m? (q_p = 1.6 × 10−¹⁹ C)

(Multiple Choice)

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Question 25

An ion is released from rest and moves due to the force from an electric field from a position in the field having a potential of 14 V to a position having a potential of 8 V.The ion:

(Multiple Choice)

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Question 26

A proton (+1.6 × 10−¹⁹ C)moves 10 cm on a path in the direction opposite to a uniform electric field of strength 3.0 N/C.How much work is done on the proton by the electrical field?

(Multiple Choice)

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Question 27

A point charge of +3.0 μC is located at the origin of a coordinate system and a second point charge of −9.0 μC is at x = 1.0 m.At what point on the x axis is the electrical potential zero?

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Question 28

If C = 48 µF,determine the equivalent capacitance for the combination shown.

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Question 29

Two parallel-plate capacitors have the same plate area,and the gap between the plates is filled with a dielectric with a dielectric constant equal to 6.The gap in capacitor A is three times that in capacitor B.What is the ratio of the capacitance of A to B?

(Multiple Choice)

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Question 30

Two particles each have the same mass but particle #1 has four times the charge of particle #2.Particle #1 is accelerated from rest through a potential difference of 10 V and attains speed v.Particle #2 is accelerated from rest also through a potential difference of 10 V.What speed does particle #2 attain?

(Multiple Choice)

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Question 31

A proton (+1.6 × 10−¹⁹ C)moves 10 cm along the direction of an electric field of strength 4.0 N/C.The electrical potential difference between the proton's initial and ending points is:

(Multiple Choice)

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Question 32

An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it hits the screen.What is the kinetic energy of the electron in electron volts? (1 eV = 1.6 × 10−¹⁹ J)

(Multiple Choice)

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Question 33

An electron (charge −1.6 × 10−¹⁹ C)moves on a path perpendicular to the direction of a uniform electric field of strength 3.0 N/C.How much work is done on the electron as it moves 20 cm?

(Multiple Choice)

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Question 34

When charges q_a,q_b,and q_c are placed respectively at the corners a,b,and c of a right triangle,the potential at the midpoint of the hypotenuse is 20 V.When the charge q_a is removed,the potential at the midpoint becomes 15 V.When,instead,the charge q_b is removed (q_a and q_c both in place),the potential at the midpoint becomes 13 V.What is the potential at the midpoint if both charges q_a and q_c are removed?

(Multiple Choice)

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Question 35

How much charge can be placed on a capacitor of plate area 20 cm² with air between the plates before it reaches "atmospheric breakdown" where E = 3.0 × 10⁶ V/m? (ε₀ = 8.85 × 10−¹² C²/N⋅m²)

(Multiple Choice)

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Question 36

What is the equivalent capacitance between points a and b? All capacitors are 2.0 μF.

(Multiple Choice)

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Question 37

A solid conducting sphere of 10 cm radius has a net charge of 40 nC.If the potential at infinity is taken as zero,what is the potential at the center of the sphere?

(Multiple Choice)

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Question 38

A solid metal sphere of radius r is inside a metal concentric spherical shell of inner radius 2r and outer radius 3r.A charge is place on the solid metal sphere and it is found that the potential at its surface is V₁ (at r)and that the potential at the outer surface of the spherical shell is V₃ (at 3r).In terms of V₁ and V₃,what is the potential at the inner surface of the metal shell (at 2r)?

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Question 39

If C = 14 µF,what is the equivalent capacitance for the combination shown?

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Question 40

Showing 21 - 40 of 54

Exam 18: Direct-Current Circuits Sources of EMF: Part A

Two capacitors with capacitances of 1.5 μC and 0.25 μF,respectively,are connected in parallel.The system is connected to a 40-V battery.What charge accumulates on the 1.5-μF capacitor?

If C1 = 25 µF,C2 = 20 µF,C3 = 10 µF,and ΔV0 = 42 V,determine the energy stored by C3.

Two capacitors with capacitances of 1.0 μC and 0.50 μF,respectively,are connected in series.The system is connected to a 150 V battery.What charge accumulates on the 1.0-μF capacitor?

A uniform electric field,with a magnitude of 600 N/C,is directed parallel to the positive x axis.If the potential at x = 4.0 m is 1000 V,what is the change in potential energy of a proton as it moves from x = 4.0 m to x = 1.0 m? (qp = 1.6 × 10−19 C)

An ion is released from rest and moves due to the force from an electric field from a position in the field having a potential of 14 V to a position having a potential of 8 V.The ion:

A proton (+1.6 × 10−19 C)moves 10 cm on a path in the direction opposite to a uniform electric field of strength 3.0 N/C.How much work is done on the proton by the electrical field?

A point charge of +3.0 μC is located at the origin of a coordinate system and a second point charge of −9.0 μC is at x = 1.0 m.At what point on the x axis is the electrical potential zero?

If C = 48 µF,determine the equivalent capacitance for the combination shown.

Two parallel-plate capacitors have the same plate area,and the gap between the plates is filled with a dielectric with a dielectric constant equal to 6.The gap in capacitor A is three times that in capacitor B.What is the ratio of the capacitance of A to B?

A proton (+1.6 × 10−19 C)moves 10 cm along the direction of an electric field of strength 4.0 N/C.The electrical potential difference between the proton's initial and ending points is:

An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it hits the screen.What is the kinetic energy of the electron in electron volts? (1 eV = 1.6 × 10−19 J)

An electron (charge −1.6 × 10−19 C)moves on a path perpendicular to the direction of a uniform electric field of strength 3.0 N/C.How much work is done on the electron as it moves 20 cm?

How much charge can be placed on a capacitor of plate area 20 cm2 with air between the plates before it reaches "atmospheric breakdown" where E = 3.0 × 106 V/m? (ε0 = 8.85 × 10−12 C2/N⋅m2)

What is the equivalent capacitance between points a and b? All capacitors are 2.0 μF.

A solid conducting sphere of 10 cm radius has a net charge of 40 nC.If the potential at infinity is taken as zero,what is the potential at the center of the sphere?

If C = 14 µF,what is the equivalent capacitance for the combination shown?

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

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If C₁ = 25 µF,C₂ = 20 µF,C₃ = 10 µF,and ΔV₀ = 42 V,determine the energy stored by C₃.

A uniform electric field,with a magnitude of 600 N/C,is directed parallel to the positive x axis.If the potential at x = 4.0 m is 1000 V,what is the change in potential energy of a proton as it moves from x = 4.0 m to x = 1.0 m? (q_p = 1.6 × 10−¹⁹ C)

A proton (+1.6 × 10−¹⁹ C)moves 10 cm on a path in the direction opposite to a uniform electric field of strength 3.0 N/C.How much work is done on the proton by the electrical field?

A proton (+1.6 × 10−¹⁹ C)moves 10 cm along the direction of an electric field of strength 4.0 N/C.The electrical potential difference between the proton's initial and ending points is:

An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it hits the screen.What is the kinetic energy of the electron in electron volts? (1 eV = 1.6 × 10−¹⁹ J)

An electron (charge −1.6 × 10−¹⁹ C)moves on a path perpendicular to the direction of a uniform electric field of strength 3.0 N/C.How much work is done on the electron as it moves 20 cm?

How much charge can be placed on a capacitor of plate area 20 cm² with air between the plates before it reaches "atmospheric breakdown" where E = 3.0 × 10⁶ V/m? (ε₀ = 8.85 × 10−¹² C²/N⋅m²)