A 5-cm radius conducting sphere has a charge density of 2 * 10-6 C/m2 on its surface. Its electric potential, relative to the potential far away, is:

A) 1.1 * 104 V B) 2.2 *104 V C) 2.3 * 105 V D) 3.6 * 105 V E) 7.2 * 106 V A) 1.1 * 104 V B) 2.2 *104 V C) 2.3 * 105 V D) 3.6 * 105 V E) 7.2 * 106 V

Three particles lie on the x axis: particle 1, with a charge of 1 * 10-8 C is at x = 1 cm, particle 2, with a charge of 2 *10-8 Cis at x = 2 cm, and particle 3, with a charge of -3 *10-8 C, is at x = 3 cm. The potential energy of this arrangement, relative to the potential energy for infinite separation, is:

A) +4.9 *10-4 J B) -4.9 *10-4 J C) +8.5* 10-4 J D) -8.5 *10-4 J E) zero A) +4.9 *10-4 J B) -4.9 *10-4 J C) +8.5* 10-4 J D) -8.5 *10-4 J E) zero

Two particle with charges Q and -Q are fixed at the vertices of an equilateral triangle with sides of length a. If k = 1/4 $\pi$$\varepsilon$0, the work required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges is:

A) 0 B) kQq/a C) kQq/a2 D) 2kQq/a E) A) 0 B) kQq/a C) kQq/a2 D) 2kQq/a E)

Points R and T are each a distance d from each of two equal positive charges as shown. If k = 1/4 $\pi$$\varepsilon$0, the work required to move a particle with a charge q from R to T is:

A) 0 B) kQq/d2 C) kQq/d D) E) kQq/(2d) A) 0 B) kQq/d2 C) kQq/d D) E) kQq/(2d)

During a lightning discharge, 30 C of charge move through a potential difference of 1.0 * 108 V in 2.0 * 10-2 s. The energy released by this lightning bolt is:

A) 1.5 * 1011 J B) 3.0*109 J C) 6.0 * 107 J D) 3.3 * 106 J E) 1500 J A) 1.5 * 1011 J B) 3.0*109 J C) 6.0 * 107 J D) 3.3 * 106 J E) 1500 J

Exam 24: Electric Potential

The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is:

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Question 1

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In the diagram, the points 1, 2, and 3 are all the same very large distance from a dipole. Rank the points according to the values of the electric potential at them, from the most negative to the most positive.

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Question 2

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The work required to carry a particle with a charge of 6.0-C from a 5.0-V equipotential surface to a 6.0-V equipotential surface and back again to the 5.0-V surface is:

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Question 3

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A 5-cm radius conducting sphere has a charge density of 2 * 10^-⁶ C/m² on its surface. Its electric potential, relative to the potential far away, is:

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Question 4

The diagram shows four pairs of large parallel conducting plates. The value of the electric potential is given for each plate. Rank the pairs according to the magnitude of the electric field between the plates, least to greatest.

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Question 5

An electron goes from one equipotential surface to another along one of the four paths shown below. Rank the paths according to the work done by the electric field, from least to greatest.

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Question 6

Choose the correct statement:

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Question 7

The equipotential surfaces associated with a charged point particle are:

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Question 8

A conducting sphere has charge Q and its electric potential is V, relative to the potential far away. If the charge is doubled to 2Q, the potential is:

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Question 9

Three particles lie on the x axis: particle 1, with a charge of 1 * 10^-⁸ C is at x = 1 cm, particle 2, with a charge of 2 10^-⁸ Cis at x = 2 cm, and particle 3, with a charge of -3 10^-⁸ C, is at x = 3 cm. The potential energy of this arrangement, relative to the potential energy for infinite separation, is:

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Question 10

A conducting sphere with radius R is charged until the magnitude of the electric field just outside its surface is E. The electric potential of the sphere, relative to the potential for away, is:

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Question 11

A particle with charge q is to be brought from far away to a point near an electric dipole. No work is done if the final position of the particle is on:

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Question 12

Two particle with charges Q and -Q are fixed at the vertices of an equilateral triangle with sides of length a. If k = 1/4 $\pi$ $\varepsilon$ ₀, the work required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges is: $Two particle with charges Q and -Q are fixed at the vertices of an equilateral triangle with sides of length a. If k = 1/4 \pi\varepsilon 0, the work required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges is:$

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Question 13

An electron moves from point i to point f, in the direction of a uniform electric field. During this placement:

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Question 14

Points R and T are each a distance d from each of two equal positive charges as shown. If k = 1/4 $\pi$ $\varepsilon$ ₀, the work required to move a particle with a charge q from R to T is: $Points R and T are each a distance d from each of two equal positive charges as shown. If k = 1/4 \pi\varepsilon 0, the work required to move a particle with a charge q from R to T is:$

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Question 15

If the electric field is in the positive x direction and has a magnitude given by E = Cx^2, where C is a constant, then the electric potential is given by V =:

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Question 16

During a lightning discharge, 30 C of charge move through a potential difference of 1.0 * 10⁸ V in 2.0 * 10^-² s. The energy released by this lightning bolt is:

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Question 17

A particle with mass m and, charge -q is projected with speed v₀ into the region between two parallel plates as shown. The potential difference between the two plates is V and their separation is d. The change in kinetic energy of the particle as it traverses this region is:

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Question 18

Points R and T are each a distance d from each of two particles with charges of equal magnitudes and opposite signs as shown. If k = 1/4 $\pi$ $\varepsilon$ ₀, the work required to move a particle with negative charge q from R to T is: $Points R and T are each a distance d from each of two particles with charges of equal magnitudes and opposite signs as shown. If k = 1/4 \pi\varepsilon 0, the work required to move a particle with negative charge q from R to T is:$

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Question 19

A total charge of 7 * 10^-⁸ C is uniformly distributed throughout a non-conducting sphere with a radius of 5 cm. The electric potential at the surface, relative to the potential far away, is about:

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Question 20

Showing 1 - 20 of 44

Exam 24: Electric Potential

The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is:

In the diagram, the points 1, 2, and 3 are all the same very large distance from a dipole. Rank the points according to the values of the electric potential at them, from the most negative to the most positive.

The work required to carry a particle with a charge of 6.0-C from a 5.0-V equipotential surface to a 6.0-V equipotential surface and back again to the 5.0-V surface is:

A 5-cm radius conducting sphere has a charge density of 2 * 10-6 C/m2 on its surface. Its electric potential, relative to the potential far away, is:

The diagram shows four pairs of large parallel conducting plates. The value of the electric potential is given for each plate. Rank the pairs according to the magnitude of the electric field between the plates, least to greatest.

An electron goes from one equipotential surface to another along one of the four paths shown below. Rank the paths according to the work done by the electric field, from least to greatest.

Choose the correct statement:

The equipotential surfaces associated with a charged point particle are:

A conducting sphere has charge Q and its electric potential is V, relative to the potential far away. If the charge is doubled to 2Q, the potential is:

A conducting sphere with radius R is charged until the magnitude of the electric field just outside its surface is E. The electric potential of the sphere, relative to the potential for away, is:

A particle with charge q is to be brought from far away to a point near an electric dipole. No work is done if the final position of the particle is on:

Two particle with charges Q and -Q are fixed at the vertices of an equilateral triangle with sides of length a. If k = 1/4 π\piπε\varepsilonε 0, the work required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges is:

An electron moves from point i to point f, in the direction of a uniform electric field. During this placement:

Points R and T are each a distance d from each of two equal positive charges as shown. If k = 1/4 π\piπε\varepsilonε 0, the work required to move a particle with a charge q from R to T is:

If the electric field is in the positive x direction and has a magnitude given by E = Cx2, where C is a constant, then the electric potential is given by V =:

During a lightning discharge, 30 C of charge move through a potential difference of 1.0 * 108 V in 2.0 * 10-2 s. The energy released by this lightning bolt is:

A particle with mass m and, charge -q is projected with speed v0 into the region between two parallel plates as shown. The potential difference between the two plates is V and their separation is d. The change in kinetic energy of the particle as it traverses this region is:

Points R and T are each a distance d from each of two particles with charges of equal magnitudes and opposite signs as shown. If k = 1/4 π\piπε\varepsilonε 0, the work required to move a particle with negative charge q from R to T is:

A total charge of 7 * 10-8 C is uniformly distributed throughout a non-conducting sphere with a radius of 5 cm. The electric potential at the surface, relative to the potential far away, is about:

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A 5-cm radius conducting sphere has a charge density of 2 * 10^-⁶ C/m² on its surface. Its electric potential, relative to the potential far away, is:

If the electric field is in the positive x direction and has a magnitude given by E = Cx^2, where C is a constant, then the electric potential is given by V =:

During a lightning discharge, 30 C of charge move through a potential difference of 1.0 * 10⁸ V in 2.0 * 10^-² s. The energy released by this lightning bolt is:

A particle with mass m and, charge -q is projected with speed v₀ into the region between two parallel plates as shown. The potential difference between the two plates is V and their separation is d. The change in kinetic energy of the particle as it traverses this region is:

A total charge of 7 * 10^-⁸ C is uniformly distributed throughout a non-conducting sphere with a radius of 5 cm. The electric potential at the surface, relative to the potential far away, is about: