A solid sphere of diameter 20 cm has a non-uniform charge density where A = 0.600 * 10-14 C/m5.Determine the total charge,Q,within the volume of the sphere.

A) 1.5 * 10-19 C B) 2.4 * 10-19 C C) 3.6 * 10-19 C D) 4.0 * 10-19 C A) 1.5 * 10-19 C B) 2.4 * 10-19 C C) 3.6 * 10-19 C D) 4.0 * 10-19 C

Two infinite,uniformly charged,flat surfaces are mutually perpendicular.One of the sheets has a charge density of + 20.0 pC/m2,and the other carries a charge density of -50.0 pC/m2.What is the magnitude of the electric field at any point not on either surface?

A) 2.75 N/C B) 2.82 N/C C) 3.04 N/C D) 3.37 N/C E) 4.45 N/C A) 2.75 N/C B) 2.82 N/C C) 3.04 N/C D) 3.37 N/C E) 4.45 N/C

Exam 22: Electric Fields and Gausss Law

A small metal ball with a mass of 10 grams and a charge of 5.0 mC is located in a region of space with an electric field of 12 N/C directed to the east.The ball is released from rest at a distance of 30 cm above the ground.What is the speed of the ball just before it hits the ground?

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Question 41

At a distance d from a charge,the magnitude of the electric field is

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Question 42

A solid sphere of diameter 20 cm has a non-uniform charge density where A = 0.600 * 10^-14 C/m⁵.Determine the total charge,Q,within the volume of the sphere.

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Question 43

A cannon shoots a charged,5.0-kg cannon ball at some angle above horizontal ground in a region in which the electric field is given by 12.0 N/C ŷ,while gravitational acceleration is straight down,-9.8 m/s² ŷ.If the ball travels half the distance it would have if there were no electric field,what is the charge on the cannon ball?

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Question 44

Consider the Earth to have a uniformly charged surface with density $\sigma$ per unit area.What is the value of $\sigma$ if objects near the surface,carrying charge Q and having mass m,experience no net force?

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Question 45

A + 8.0-nC point charge is located in the center of a thick conducting spherical shell.The shell has an inner radius of 1.0 m,an outer radius of 1.2 m,and a charge of -3.0 nC.What is the magnitude of the electric field at r = 1.5 m?

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Question 46

A point charge q = 4.00 * 10^-9 C is placed on the x-axis at the origin.What is the electric field produce at x = 40.0 cm?

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Question 47

A point charge of 7.8 $\mu$ C is located inside a hemisphere,which consists of two surfaces: a flat disk topped by half a sphere.If the electric flux through the flat disk is 3.5* 10⁵ Nm²/C,what is the flux through the half-sphere section?

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Question 48

A 3.5-C point charge sits in the center of a cube and the electric flux through one of the cube's sides is 6.6 * 10¹⁰ Nm²/C .What is the length of one of the edges of the cube?

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Question 49

A 4.00 * 10^-9 C point charge is placed at the origin.Where on the x-axis is the electric field produced by the point charge 157 N/C?

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Question 50

Occasionally parts of the lunar surface develop an electric field 20 kN/C,allowing dust particles that have been charged by cosmic rays to become levitated.How many electrons must be placed on a 1.0-g dust particle if it is to be levitated in this field? The acceleration due to gravity on the surface of the moon is 1.62 m/s².

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Question 51

Two infinite,uniformly charged,flat surfaces are mutually perpendicular.One of the sheets has a charge density of + 20.0 pC/m²,and the other carries a charge density of -50.0 pC/m².What is the magnitude of the electric field at any point not on either surface?

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Question 52

A point charge is placed on the x-axis at the origin.The electric field produce at x = 40.0 cm is 157 N/C? What is the point charge?

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Question 53

Two point charges are placed on two of the corners of a triangle as shown.Find the magnitude of the electric field at the third corner of the triangle.

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Question 54

A 22-g metal ball hangs from a string.An electric field of 15,000 N/C,pointing to the right,is then turned on.After the electric field is turned on,the ball hangs at a 25 degree angle away from the vertical.What is the charge on the ball?

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Question 55

A point charge sits in the center of a 1 m cube.The electric flux through one side of the cube is 7.2 * 10¹⁰ Nm²/C.What is the charge at the center of the cube?

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Question 56

A point charge + Q is located on the x-axis at x = a,and a second point charge -Q is located on the x axis at x = -a.A cubic Gaussian surface with sides l = 3a is centered at the origin.The flux through this Gaussian surface is

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Question 57

In which of the following situations is the electric field the strongest?

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Question 58

Three + 4.0-mC fixed point charges are located at (0.0 mm,0.0 mm),(2.0 mm,2.0 mm),and (2.0 mm,-2.0 mm).What is the magnitude of the electric field at the position (2.0 mm,0.0 mm)?

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Question 59

Two infinite non-conducting plates are parallel to each other,with an interplate distance of d = 10.0 cm.Each plate carries a uniform two-dimensional charge density of 7.4 $\mu$ C/m².What is the magnitude of the electric field at a point located a quarter of the way between the plates?

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Question 60

Showing 41 - 60 of 74

Exam 22: Electric Fields and Gausss Law

A small metal ball with a mass of 10 grams and a charge of 5.0 mC is located in a region of space with an electric field of 12 N/C directed to the east.The ball is released from rest at a distance of 30 cm above the ground.What is the speed of the ball just before it hits the ground?

At a distance d from a charge,the magnitude of the electric field is

A solid sphere of diameter 20 cm has a non-uniform charge density where A = 0.600 * 10-14 C/m5.Determine the total charge,Q,within the volume of the sphere.

Consider the Earth to have a uniformly charged surface with density σ\sigmaσ per unit area.What is the value of σ\sigmaσ if objects near the surface,carrying charge Q and having mass m,experience no net force?

A + 8.0-nC point charge is located in the center of a thick conducting spherical shell.The shell has an inner radius of 1.0 m,an outer radius of 1.2 m,and a charge of -3.0 nC.What is the magnitude of the electric field at r = 1.5 m?

A point charge q = 4.00 * 10-9 C is placed on the x-axis at the origin.What is the electric field produce at x = 40.0 cm?

A point charge of 7.8 μ\muμ C is located inside a hemisphere,which consists of two surfaces: a flat disk topped by half a sphere.If the electric flux through the flat disk is 3.5* 105 Nm2/C,what is the flux through the half-sphere section?

A 3.5-C point charge sits in the center of a cube and the electric flux through one of the cube's sides is 6.6 * 1010 Nm2/C .What is the length of one of the edges of the cube?

A 4.00 * 10-9 C point charge is placed at the origin.Where on the x-axis is the electric field produced by the point charge 157 N/C?

Two infinite,uniformly charged,flat surfaces are mutually perpendicular.One of the sheets has a charge density of + 20.0 pC/m2,and the other carries a charge density of -50.0 pC/m2.What is the magnitude of the electric field at any point not on either surface?

A point charge is placed on the x-axis at the origin.The electric field produce at x = 40.0 cm is 157 N/C? What is the point charge?

Two point charges are placed on two of the corners of a triangle as shown.Find the magnitude of the electric field at the third corner of the triangle.

A 22-g metal ball hangs from a string.An electric field of 15,000 N/C,pointing to the right,is then turned on.After the electric field is turned on,the ball hangs at a 25 degree angle away from the vertical.What is the charge on the ball?

A point charge sits in the center of a 1 m cube.The electric flux through one side of the cube is 7.2 * 1010 Nm2/C.What is the charge at the center of the cube?

A point charge + Q is located on the x-axis at x = a,and a second point charge -Q is located on the x axis at x = -a.A cubic Gaussian surface with sides l = 3a is centered at the origin.The flux through this Gaussian surface is

In which of the following situations is the electric field the strongest?

Three + 4.0-mC fixed point charges are located at (0.0 mm,0.0 mm),(2.0 mm,2.0 mm),and (2.0 mm,-2.0 mm).What is the magnitude of the electric field at the position (2.0 mm,0.0 mm)?

Two infinite non-conducting plates are parallel to each other,with an interplate distance of d = 10.0 cm.Each plate carries a uniform two-dimensional charge density of 7.4 μ\muμ C/m2.What is the magnitude of the electric field at a point located a quarter of the way between the plates?

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A solid sphere of diameter 20 cm has a non-uniform charge density where A = 0.600 * 10^-14 C/m⁵.Determine the total charge,Q,within the volume of the sphere.

Consider the Earth to have a uniformly charged surface with density $\sigma$ per unit area.What is the value of $\sigma$ if objects near the surface,carrying charge Q and having mass m,experience no net force?

A point charge q = 4.00 * 10^-9 C is placed on the x-axis at the origin.What is the electric field produce at x = 40.0 cm?

A point charge of 7.8 $\mu$ C is located inside a hemisphere,which consists of two surfaces: a flat disk topped by half a sphere.If the electric flux through the flat disk is 3.5* 10⁵ Nm²/C,what is the flux through the half-sphere section?

A 3.5-C point charge sits in the center of a cube and the electric flux through one of the cube's sides is 6.6 * 10¹⁰ Nm²/C .What is the length of one of the edges of the cube?

A 4.00 * 10^-9 C point charge is placed at the origin.Where on the x-axis is the electric field produced by the point charge 157 N/C?

Two infinite,uniformly charged,flat surfaces are mutually perpendicular.One of the sheets has a charge density of + 20.0 pC/m²,and the other carries a charge density of -50.0 pC/m².What is the magnitude of the electric field at any point not on either surface?

A point charge sits in the center of a 1 m cube.The electric flux through one side of the cube is 7.2 * 10¹⁰ Nm²/C.What is the charge at the center of the cube?

Two infinite non-conducting plates are parallel to each other,with an interplate distance of d = 10.0 cm.Each plate carries a uniform two-dimensional charge density of 7.4 $\mu$ C/m².What is the magnitude of the electric field at a point located a quarter of the way between the plates?