Homework Answers
a)
b) Density of magnetic field lines show the strength or magnitude of magnetic field. More is the density, more is the magnitude of magnetic field.
c) Dot represents 'perpendicularly outward direction'.
d) Cross represents 'perpendicularly inward direction'.
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what is the Slunt for B in terms of Newton, Coulomb, meter and second? Consider the...
If our first vector a is in the positive x-direction and our second vector b is...
If our first vector a is in the positive x-direction and our second vector b is in the Positive y-direction. what is the direction of c? If we now consider b times a instead of a times b, what is the direction of c (This makes b the first vector now and a the second vector). Does this match your results from the previous page? Magnetism: The real equation for magnetic force is F_B = qv times B, this means...
Questions 1. If the potential is the same everywhere on the conducting electrodes, what is the...
Questions 1. If the potential is the same everywhere on the conducting electrodes, what is the electric field strength in each electrode? 2. If a volt is joule/coulomb, show that a newton/coulomb and a volt/meter are equivalent. 3. 4. Under what conditions will the field between the electrodes of a parallel plate Why is it not possible for two different equipotential lines to cross? configuration be uniform? Why are the equipotential lines near a conducting surface parallel to the surface?...
Force on Moving Charges in a Magnetic Field
Magnets exert forces on other magnets even though they are separated by some distance. Usually the force on a magnet (or piece of magnetized matter) is pictured asthe interaction of that magnet with the magnetic field at its location (the field being generated by other magnets or currents). More fundamentally, theforce arises from the interaction of individual moving charges within a magnet with the local magnetic field. This force is written ,where is the force, is the individual charge (which...
Consider the charges shown below which are traveling with velocity v in a magnetic field B....
Consider the charges shown below which are traveling with velocity v in a magnetic field B. Each charge will experience a force F caused by the magnetic field. In the diagrams below draw the direction of the force on each charge caused by the magnetic field. If the force is given, draw the direction of the velocity necessary to give the force as shown. Use the symbols and to represent vectors that point out of and into the plane of...
B. [12 points total] Charge is spread uniformly across an i Each square meter of this sheet carries a charge of 24...
B. [12 points total] Charge is spread uniformly across an i Each square meter of this sheet carries a charge of 24 uC. The sheet moves in the +r direction with a infinitely-large thin sheet lying in the ry plane. constant speed of 8.0 m/s as shown. a Moving sheet of charge +24 uC/m 8.0 m/s y Amperian loop the Sin le the chase S + te t (a) [2 points] What is the direction of the magnetic field just...
Consider two, long parallel wires (labeled a and b) carrying electric currents ia and in respectively...
Consider two, long parallel wires (labeled a and b) carrying electric currents ia and in respectively in the same directions. The wires are separated by distance d, as shown in the figure below. Interactive Figure 29.4.1: Two long, straight, parallel wires carry currents in the same direction. Figure 29.4.2 shows an end-on view with the two currents directed out of the screen (in the +z direction). Assume the following values for the two currents and the distance d: ia =...
If a small particle with electric charge q = - 3.5 times 10^-4 Coulombs is placed...
If a small particle with electric charge q = - 3.5 times 10^-4 Coulombs is placed at the point with coordinates (-4.0m, 2.1m, 2 2m) where the x, y and z components of the electric field vector are E_x = -10.5 Newtons/Coulomb. E_y = 10 5 Newtons/Coulomb, E_z = - 8 0 Newtons/Coulomb. what is the force acting on the particle? How is the electric potential energy of a charged particle with charge q at a given point related to...
The second most important economist of the 20th Century (in terms of influence) was Milton Friedman. In...
The second most important economist of the 20th Century (in terms of influence) was Milton Friedman. In his lecture (video below) he explains that no one actually knows how to make a pencil, which will probably sound strange to most. Watch from about the 0:40 second point to approximately 6:00 minutes and answer all of the following questions: Why does no one know how to make a pencil? What is the ‘miracle’ that allows pencils to be made (in your response...
Select the appropriate answer(s) to the following questions: (12 pts.) Select the appropriate answer(s) to the...
Select the appropriate
answer(s) to the following questions:
(12 pts.) Select the appropriate answer(s) to the following questions: (1 pt.) If ū is the velocity of a positive charge "+q" and it is subjected to a magnetic field B, determine the direction of the magnetic force acting on the charged particle (check all that applies) Into the page Out of the page Perpendicular to both vectors ū and B In the same plane as vectors ū and B + ū...
For example, consider the situation shown on the right in which a rectangular loop is 8...
For example, consider the situation shown on the right in which a rectangular loop is 8 inside a region of space with a magnetic field that points into the page. The magnetic field also increases. A. Borig: What is the direction of the original magnetic field? Into the page B. PB: Is ºb decreasing, increasing or staying the same? Increases because the magnitude of the magnetic field increases C. Bind: What is the direction of the induced magnetic field? Since...
If our first vector a is in the positive x-direction and our second vector b is in the Positive y-direction. what is the direction of c? If we now consider b times a instead of a times b, what is the direction of c (This makes b the first vector now and a the second vector). Does this match your results from the previous page? Magnetism: The real equation for magnetic force is F_B = qv times B, this means...
Questions 1. If the potential is the same everywhere on the conducting electrodes, what is the electric field strength in each electrode? 2. If a volt is joule/coulomb, show that a newton/coulomb and a volt/meter are equivalent. 3. 4. Under what conditions will the field between the electrodes of a parallel plate Why is it not possible for two different equipotential lines to cross? configuration be uniform? Why are the equipotential lines near a conducting surface parallel to the surface?...
Magnets exert forces on other magnets even though they are separated by some distance. Usually the force on a magnet (or piece of magnetized matter) is pictured asthe interaction of that magnet with the magnetic field at its location (the field being generated by other magnets or currents). More fundamentally, theforce arises from the interaction of individual moving charges within a magnet with the local magnetic field. This force is written ,where is the force, is the individual charge (which...
Consider the charges shown below which are traveling with velocity v in a magnetic field B. Each charge will experience a force F caused by the magnetic field. In the diagrams below draw the direction of the force on each charge caused by the magnetic field. If the force is given, draw the direction of the velocity necessary to give the force as shown. Use the symbols and to represent vectors that point out of and into the plane of...
B. [12 points total] Charge is spread uniformly across an i Each square meter of this sheet carries a charge of 24 uC. The sheet moves in the +r direction with a infinitely-large thin sheet lying in the ry plane. constant speed of 8.0 m/s as shown. a Moving sheet of charge +24 uC/m 8.0 m/s y Amperian loop the Sin le the chase S + te t (a) [2 points] What is the direction of the magnetic field just...
Consider two, long parallel wires (labeled a and b) carrying electric currents ia and in respectively in the same directions. The wires are separated by distance d, as shown in the figure below. Interactive Figure 29.4.1: Two long, straight, parallel wires carry currents in the same direction. Figure 29.4.2 shows an end-on view with the two currents directed out of the screen (in the +z direction). Assume the following values for the two currents and the distance d: ia =...
If a small particle with electric charge q = - 3.5 times 10^-4 Coulombs is placed at the point with coordinates (-4.0m, 2.1m, 2 2m) where the x, y and z components of the electric field vector are E_x = -10.5 Newtons/Coulomb. E_y = 10 5 Newtons/Coulomb, E_z = - 8 0 Newtons/Coulomb. what is the force acting on the particle? How is the electric potential energy of a charged particle with charge q at a given point related to...
Select the appropriate
answer(s) to the following questions:
(12 pts.) Select the appropriate answer(s) to the following questions: (1 pt.) If ū is the velocity of a positive charge "+q" and it is subjected to a magnetic field B, determine the direction of the magnetic force acting on the charged particle (check all that applies) Into the page Out of the page Perpendicular to both vectors ū and B In the same plane as vectors ū and B + ū...
For example, consider the situation shown on the right in which a rectangular loop is 8 inside a region of space with a magnetic field that points into the page. The magnetic field also increases. A. Borig: What is the direction of the original magnetic field? Into the page B. PB: Is ºb decreasing, increasing or staying the same? Increases because the magnitude of the magnetic field increases C. Bind: What is the direction of the induced magnetic field? Since...
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