The Coulomb constant,k,has a value of 8.99 $\times$ 109 N·m2/C2.The permittivity of free space,$\varepsilon_{o}$,has the units

A) N·m2/C2. B) N·m/C. C) C/(N·m). D) C2/(N·m2). E) that are not given. A) N·m2/C2. B) N·m/C. C) C/(N·m). D) C2/(N·m2). E) that are not given.

Three point charges are positioned as follows: q1 is at (0.00 m,0.00 m),q2 is at (1.20 m,0.00 m),and q3 is at (1.20 m,1.60 m).If q1 = 1.00 $ \mu$C,q2 = 2.00 $ \mu$C,and q3 = 3.00 $ \mu$C,what is the magnitude of the force on q2?

A) 2.45 $\times$ 10-2 N B) 1.25 $\times$ 10-2 N C) 2.11 $\times$ 10-2 N D) 3.36 $\times$ 10-2 N E) 5.08 $\times$ 10-2 N A) 2.45 $\times$ 10-2 N B) 1.25 $\times$ 10-2 N C) 2.11 $\times$ 10-2 N D) 3.36 $\times$ 10-2 N E) 5.08 $\times$ 10-2 N

An electron gun sends electrons through a region with an electric field of 1.5 $\times$ 104 N/C for a distance of 2.5 cm.If the electrons start from rest,how fast are they moving after traversing the gun?

A) 1.1 $\times$ 104 m/s B) 1.1 $\times$ 107 m/s C) 2.3 $\times$ 104 m/s D) 2.3 $\times$ 107 m/s E) 2.6 $\times$ 1015 m/s A) 1.1 $\times$ 104 m/s B) 1.1 $\times$ 107 m/s C) 2.3 $\times$ 104 m/s D) 2.3 $\times$ 107 m/s E) 2.6 $\times$ 1015 m/s

In a diagram of electric field lines,q1 has 9 lines going into it and q2 has 27 lines going out of it.If one of the charges is -40 mC,which of the following could be the other one?

A) -120 mC B) 18.0 mC C) -18.0 mC D) 120 mC E) none of the these choices are correct A) -120 mC B) 18.0 mC C) -18.0 mC D) 120 mC E) none of the these choices are correct

Exam 16: Electric Forces and Fields

A 1.00 nC charge is placed on the x-axis at x = - 1.00 m. A second 1.00 nC charge is placed on the x-axis at x = 1.00 m. A third charge of 1.00 nC is placed on the y-axis at y = - 1.00 m. A fourth charge is place on the y-axis at y = 1.00 m. What is the fourth charge if the electric field at the origin is zero?

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Question 1

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We find from Gauss's law that the flux through a closed surface

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Question 2

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A horizontally-projected beam of protons travelling at 55 km/s travels between two parallel plates separated by 7.4 cm,and 12 cm long,between which there is an electric field of 7.2 V/m upward.If the beam enters the region at a height of 3.7 cm above the lower plate,at what height above the lower plate is the beam when it exits? The proton mass is 1.67 $\times$ 10^-27 kg.

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Question 3

Correct Answer:

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Question 4

Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 $\mu$ C charges.On each of the other two corners are - 1.00 $\mu$ C charges.What is the magnitude of the force on one of the positive charges?

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Question 5

If more field lines leave a closed surface than enter that surface,then

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Question 6

The Coulomb constant,k,has a value of 8.99 $\times$ 10⁹ N·m²/C².The permittivity of free space, $\varepsilon_{o}$ ,has the units

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Question 7

Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 $\mu$ C charges.On each of the other two corners are -1.00 $\mu$ C charges.What is the direction of the force on each charge?

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Question 8

A 72 nC charge is located at x = 3.00 m on the x-axis and an 8.0 nC charge is located at x = 7.0 m.At what point on the x-axis is the electric field zero?

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Question 9

A point charge of 3.00 $\mu$ C is located on the y-axis at y = 4.0 m,another point charge of 6.0 $\mu$ C is located on the x-axis at x = 5.0 m,and a third charge of 7.2 $\mu$ C is located at (5.0 m,4.0 m).What is the magnitude of the force on the 7.2 $\mu$ C charge?

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Question 10

Three point charges are positioned as follows: q₁ is at (0.00 m,0.00 m),q₂ is at (1.20 m,0.00 m),and q₃ is at (1.20 m,1.60 m).If q₁ = 1.00 $\mu$ C,q₂ = 2.00 $\mu$ C,and q₃ = 3.00 $\mu$ C,what is the magnitude of the force on q₂?

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Question 11

An imaginary spherical surface has radius 1.5 m.Fully contained within and concentric with the spherical surface is a spherical conductor with a uniform surface charge density of 1.5 $\times$ 10^-7 C/m².What is its radius if the flux through the imaginary surface is electric field 1.5 m from its center is 480 Nm²/C?

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Question 12

A long linear charge distribution of charge density 1.35 nC/m is surrounded by a concentric cylindrical surface of length 1.60 m and radius 23.6 cm.What is the electric flux through the surface of the cylinder?

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Question 13

An electron gun sends electrons through a region with an electric field of 1.5 $\times$ 10⁴ N/C for a distance of 2.5 cm.If the electrons start from rest,how fast are they moving after traversing the gun?

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Question 14

A thin metallic shell of radius 40 cm has a charge of -25 nC on it.At the center of the sphere is a point charge of 35 nC.What is the electric field 15 cm from the center of the shell?

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Question 15

A horizontally-projected beam of protons travelling at 55 km/s travels between two parallel plates separated by 7.4 cm,and 12 cm long,between which there is an electric field of 7.2 mV/m upward.If the beam enters the region at exactly midway vertically between the plates,and exits the region 7.2 microns closer to the lower plate,where relative to the lower plate would a beam of electrons - injected into the region at the same location - exit? The proton mass is 1.67 $\times$ 10^-27 kg and that of the electron is 9.11 $\times$ 10^-31 kg.

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Question 16

A thin spherical shell of radius 20.0 cm has 5.0 $\mu$ C of charge uniformly distributed over its surface.What is the magnitude of the electric field 2.00 m from the center of the sphere?

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Question 17

In a diagram of electric field lines,q₁ has 9 lines going into it and q₂ has 27 lines going out of it.If one of the charges is -40 mC,which of the following could be the other one?

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Question 18

Two charges are located on the x-axis. A 22 $\mu$ C charge is located at the origin and a 47 $\mu$ C charge is located at x = 4.0 m.What is the electric field at x = 3.00 m?

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Question 19

For a conductor in electrostatic equilibrium,which of the following statements is NOT true?

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Question 20

Showing 1 - 20 of 86

Exam 16: Electric Forces and Fields

We find from Gauss's law that the flux through a closed surface

Household wiring is made with

Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 μ \muμ C charges.On each of the other two corners are - 1.00 μ \muμ C charges.What is the magnitude of the force on one of the positive charges?

If more field lines leave a closed surface than enter that surface,then

The Coulomb constant,k,has a value of 8.99 ×\times× 109 N·m2/C2.The permittivity of free space, εo\varepsilon_{o}εo​ ,has the units

Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 μ \muμ C charges.On each of the other two corners are -1.00 μ \muμ C charges.What is the direction of the force on each charge?

A 72 nC charge is located at x = 3.00 m on the x-axis and an 8.0 nC charge is located at x = 7.0 m.At what point on the x-axis is the electric field zero?

A point charge of 3.00 μ \muμ C is located on the y-axis at y = 4.0 m,another point charge of 6.0 μ \muμ C is located on the x-axis at x = 5.0 m,and a third charge of 7.2 μ \muμ C is located at (5.0 m,4.0 m).What is the magnitude of the force on the 7.2 μ \muμ C charge?

Three point charges are positioned as follows: q1 is at (0.00 m,0.00 m),q2 is at (1.20 m,0.00 m),and q3 is at (1.20 m,1.60 m).If q1 = 1.00 μ \muμ C,q2 = 2.00 μ \muμ C,and q3 = 3.00 μ \muμ C,what is the magnitude of the force on q2?

A long linear charge distribution of charge density 1.35 nC/m is surrounded by a concentric cylindrical surface of length 1.60 m and radius 23.6 cm.What is the electric flux through the surface of the cylinder?

An electron gun sends electrons through a region with an electric field of 1.5 ×\times× 104 N/C for a distance of 2.5 cm.If the electrons start from rest,how fast are they moving after traversing the gun?

A thin metallic shell of radius 40 cm has a charge of -25 nC on it.At the center of the sphere is a point charge of 35 nC.What is the electric field 15 cm from the center of the shell?

A thin spherical shell of radius 20.0 cm has 5.0 μ \muμ C of charge uniformly distributed over its surface.What is the magnitude of the electric field 2.00 m from the center of the sphere?

In a diagram of electric field lines,q1 has 9 lines going into it and q2 has 27 lines going out of it.If one of the charges is -40 mC,which of the following could be the other one?

Two charges are located on the x-axis. A 22 μ \muμ C charge is located at the origin and a 47 μ \muμ C charge is located at x = 4.0 m.What is the electric field at x = 3.00 m?

For a conductor in electrostatic equilibrium,which of the following statements is NOT true?

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Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 $\mu$ C charges.On each of the other two corners are - 1.00 $\mu$ C charges.What is the magnitude of the force on one of the positive charges?

The Coulomb constant,k,has a value of 8.99 $\times$ 10⁹ N·m²/C².The permittivity of free space, $\varepsilon_{o}$ ,has the units

Four point charges are located at the corners of a square,1.00 m by 1.00 m.On each of two diagonally opposite corners are 1.00 $\mu$ C charges.On each of the other two corners are -1.00 $\mu$ C charges.What is the direction of the force on each charge?

A point charge of 3.00 $\mu$ C is located on the y-axis at y = 4.0 m,another point charge of 6.0 $\mu$ C is located on the x-axis at x = 5.0 m,and a third charge of 7.2 $\mu$ C is located at (5.0 m,4.0 m).What is the magnitude of the force on the 7.2 $\mu$ C charge?

Three point charges are positioned as follows: q₁ is at (0.00 m,0.00 m),q₂ is at (1.20 m,0.00 m),and q₃ is at (1.20 m,1.60 m).If q₁ = 1.00 $\mu$ C,q₂ = 2.00 $\mu$ C,and q₃ = 3.00 $\mu$ C,what is the magnitude of the force on q₂?

An electron gun sends electrons through a region with an electric field of 1.5 $\times$ 10⁴ N/C for a distance of 2.5 cm.If the electrons start from rest,how fast are they moving after traversing the gun?

A thin spherical shell of radius 20.0 cm has 5.0 $\mu$ C of charge uniformly distributed over its surface.What is the magnitude of the electric field 2.00 m from the center of the sphere?

In a diagram of electric field lines,q₁ has 9 lines going into it and q₂ has 27 lines going out of it.If one of the charges is -40 mC,which of the following could be the other one?

Two charges are located on the x-axis. A 22 $\mu$ C charge is located at the origin and a 47 $\mu$ C charge is located at x = 4.0 m.What is the electric field at x = 3.00 m?