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Homework Answers
Solution) Here we have linear charge density lambda = charge per
unit length 
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Problem 5:* An infinite slab of charge of thickness 2zo lies in the xy-plane between zZ0 and z-zo. The volume charge density p (expressed in C/m3) is constant. a. Use Gauss's law to find an expression for the electric field strength at coordinate z inside the slab i b. Find an expression for the electric field strength above the slab (z2 z0). c....
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The correct answer is already given. What you have to do is how
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Problem 3: Consider a disk of radius R in the xy-plane with a non-uniform surface charge density σ(r)-ar, where a > 0 is a constant. Determine the electric field at a point z above the disk, along its axis of symmetry. [Answer:2k,zanV2+R2+R-Inz-
The correct answers are already given. What you have to do is how to get those...
The correct answers are already given. What you have to do is
how to get those answers.
Problem 2: A long coaxial cable (see figure) carries a uniform volume charge density Pl on the inner cylinder (radius a), and a uniform surface charge density p2 on the outer cylindrical shell (radius b) p is negative and is of just the right magnitude that the cable asa whole is electrically neutral a. Find the electric field in each of the three...
The correct answer is already given. What you have to do is how to get this...
The correct answer is already given. What you have to do is how
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60 points (10 points per problem)- Problem 1: The figure on the right shows a thin rod of length L. A total charge of Q is distributed uniformly along its length. Find an expression for the vector electric field at point P. Give your answer in component form. Answer:
The correct answers are already given. What you have to do is how to get those...
The correct answers are already given. What you have to do is
how to get those answers.
Problem 6: The figure on the right shows a thin rod of length L and charge Q Find an expression for the electric potential a distance z away from the center of the rod on the line that bisects the rod (point A in the figure). a. Point A b. Find an expression for the electric potential a distance x away Point B...
A charged disk and a charged ring are centered at the origin in the free space...
A charged disk and a charged ring are centered at the origin in the free space as shown in figure 4. Bothe changed elements exists in the xy plane. The disk has a radius a and carries a uniform surface charge density of Ps. The ring has a radius 2a and carries a uniform line charge density Pe. Find the following: a) The electric field intensity on z-axis and determine where the electric field is zero b) The electric potential...
The correct answer is already given. What you have to do is how to get this...
The correct answer is already given. What you have to do is how
to get this answer.
Problem 4:- The two parallel plates in the figure on the right are 2.0 cm apart and the electric field strength between them is 1.0 x 104 N/C. An electron is launched at a 45° angle from the positive plate. What is the maximum initial speed v0 the electron can have without hitting the negative plate? 2.0 cm 45° ttT [Answer: 1.19 x...
The correct answers are already given. What you have to do is how to get those...
The correct answers are already given. What you have to do is
how to get those answers.
Problem 1: An early model of the atom, proposed by positive point charge +Ze (the nucleus) at the center of a sphere of radius R with uniformly distributed negative charge -Ze. Zis the atomic number, the number of protons in the nucleus and the number of electrons in the negative sphere after his discovery of the atomic nucleus, had a a. Show that...
Consider a wide, nearly flat square with uniform charge density p. The square is centered at...
Consider a wide, nearly flat square with uniform charge density p.
The square is centered at the origin and is lying parallel to the
xy plane. It has side length a and thickness h h<<a, so the
top surface of the square is at z=h/2 and the bottom is at z=-h/2.
Find a simple approximate (monomial) expression for the magnitude
of the electric field on the z-axis for
(1). 0 < z < h/2
(2). h/2 < z << a...
An infinite horizontal slab of thickness 2w is perpendicular to the z-axis and centered on the...
An infinite horizontal slab of thickness 2w is perpendicular to the z-axis and centered on the xy-plane. It carries a uniform current density J in the x-direction. There is a cylindrical hole in the slab with radius w centered on the x-axis. Find the B-field a distance z from the origin along the z-axis such that z<w. Answer in terms of µ.
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Problem 5:* An infinite slab of charge of thickness 2zo lies in the xy-plane between zZ0 and z-zo. The volume charge density p (expressed in C/m3) is constant. a. Use Gauss's law to find an expression for the electric field strength at coordinate z inside the slab i b. Find an expression for the electric field strength above the slab (z2 z0). c....
The correct answer is already given. What you have to do is how
to get this answer.
Problem 3: Consider a disk of radius R in the xy-plane with a non-uniform surface charge density σ(r)-ar, where a > 0 is a constant. Determine the electric field at a point z above the disk, along its axis of symmetry. [Answer:2k,zanV2+R2+R-Inz-
The correct answers are already given. What you have to do is
how to get those answers.
Problem 2: A long coaxial cable (see figure) carries a uniform volume charge density Pl on the inner cylinder (radius a), and a uniform surface charge density p2 on the outer cylindrical shell (radius b) p is negative and is of just the right magnitude that the cable asa whole is electrically neutral a. Find the electric field in each of the three...
The correct answer is already given. What you have to do is how
to get this answer.
60 points (10 points per problem)- Problem 1: The figure on the right shows a thin rod of length L. A total charge of Q is distributed uniformly along its length. Find an expression for the vector electric field at point P. Give your answer in component form. Answer:
The correct answers are already given. What you have to do is
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Problem 6: The figure on the right shows a thin rod of length L and charge Q Find an expression for the electric potential a distance z away from the center of the rod on the line that bisects the rod (point A in the figure). a. Point A b. Find an expression for the electric potential a distance x away Point B...
A charged disk and a charged ring are centered at the origin in the free space as shown in figure 4. Bothe changed elements exists in the xy plane. The disk has a radius a and carries a uniform surface charge density of Ps. The ring has a radius 2a and carries a uniform line charge density Pe. Find the following: a) The electric field intensity on z-axis and determine where the electric field is zero b) The electric potential...
The correct answer is already given. What you have to do is how
to get this answer.
Problem 4:- The two parallel plates in the figure on the right are 2.0 cm apart and the electric field strength between them is 1.0 x 104 N/C. An electron is launched at a 45° angle from the positive plate. What is the maximum initial speed v0 the electron can have without hitting the negative plate? 2.0 cm 45° ttT [Answer: 1.19 x...
The correct answers are already given. What you have to do is
how to get those answers.
Problem 1: An early model of the atom, proposed by positive point charge +Ze (the nucleus) at the center of a sphere of radius R with uniformly distributed negative charge -Ze. Zis the atomic number, the number of protons in the nucleus and the number of electrons in the negative sphere after his discovery of the atomic nucleus, had a a. Show that...
Consider a wide, nearly flat square with uniform charge density p.
The square is centered at the origin and is lying parallel to the
xy plane. It has side length a and thickness h h<<a, so the
top surface of the square is at z=h/2 and the bottom is at z=-h/2.
Find a simple approximate (monomial) expression for the magnitude
of the electric field on the z-axis for
(1). 0 < z < h/2
(2). h/2 < z << a...
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