An electron is “boiled” from a filament. This means that the electron, with charge e and...
An electron is “boiled” from a filament. This means that the electron, with charge e and mass m, starts from rest near the filament. It is then accelerated by a potential difference of ∆V volts. What is the speed v of the electron? Solve symbolically and put your work here: - If this electron, with speed v, enters a region with magnetic field B that is normal to the plane of motion, it will execute circular motion. What is the radius of curvature R? That is, solve for R symbolically. Put your work here: - Now let’s assume that you can measure things like R, B, and ∆V. Rearrange your solution to solve for the ratio e/m. Show work here. You cannot measure the speed v, so your final result cannot have this in it.
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An electron is “boiled” from a filament. This means that the
electron, with charge e and...
An electron is “boiled” from a filament. This means that the electron, with charge e and...
An electron is “boiled” from a filament. This means that the electron, with charge e and mass m, starts from rest near the filament. It is then accelerated by a potential difference of ∆V volts. What is the speed v of the electron? Solve symbolically and put your work here:
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
Chapter 28, Problem 020 Your answer is partially correct. Try again. An electron is accelerated from...
Chapter 28, Problem 020 Your answer is partially correct. Try again. An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. The figure gives the radius r of that motion versus v1/2. The vertical axis scale is set by r= 2.9 mm, and the horizontal axis scale is set by V, 1/2= 25.7 v1/2. What is the magnitude of the magnetic field? r (mm) v1/2...
A common unit used to measure the energy of small particles is the electron volt (eV),...
A common unit used to measure the energy of small particles is the electron volt (eV), which is equal to the magnitude of the charge on the electron (measured in coulombs C) multiplied by 1 volt (V). In chapter 17, you will learn coulombs multiplied by volts is equivalent to mass multiplied by length squared and divided by time squared. that 1) Which of the following quantities could be written in eV? Case A: Gravitational potential energy mgh, where m...
3. (a) Show that when a particle with mass m and charge q enters a magnetic...
3. (a) Show that when a particle with mass m and charge q enters a magnetic field having its velocity v perpendicular to the direction of the magnetic field B, it will perform a mv circular path of radius R- qB (b) Using the previous result find an expression for the period T of the circular motion. (c) A charged particle moves into a region of uniform magnetic field, goes through half a circle and then exits that region, as...
27B -- Experiment: Magnetic Force on a Moving Charge - qolme Objective: In this module you...
27B -- Experiment: Magnetic Force on a Moving Charge - qolme Objective: In this module you will observe the trajectory of an electron beam in a uniform magnetic field oriented in various ways to the electron velocity. You will then use your observation of the radius of the electron trajectory to measure the charge to mass ratio for an electron. Equipment: One elm apparatus (Lurge mounted glass bulb with Helmholtz coils); one Leybold or PASCO power supply for electron gun...
How much work must we do on an electron to move it from point A, which...
How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces (e = 1.60 times 10^-19C) 1.60 times 10^-17 J -1.60 times 10^-17 J 1.6 J -1.6 J This cannot be determined because we do not know the distance traveled. If an electron...
Electric field. 6. An electron (charge q has a uniform field E- -Ej where E is...
Electric field.
6. An electron (charge q has a uniform field E- -Ej where E is a positive constant. The electron has mass m and, as shown below, is initially moving exactly horizontally with an initial velocity vo -Voi. The chamber is a horizontal distance L long. e) enters a capacitor which (a) Determine the r and y components of the electron's acceleration in terms of the given variables Fet (b) Determine the amount of time the electron spends in...
What is the de Broglie wavelength (in meters) of a neutron traveling at a speed of...
What is the de Broglie wavelength (in meters) of a neutron traveling at a speed of 0.92 c? Since the neutron's speed is close to the speed of light (c), Special Relativity must be used when calculating the linear momentum (p). The mass of the neutron is 1.675 x 10-27 kg. Suppose that an alpha particle (mαα = 6.646 x 10-27 kg) has a kinetic energy of 75 keV. What is the alpha particle's speed (v) (in terms of "c")?...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
Chapter 28, Problem 020 Your answer is partially correct. Try again. An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. The figure gives the radius r of that motion versus v1/2. The vertical axis scale is set by r= 2.9 mm, and the horizontal axis scale is set by V, 1/2= 25.7 v1/2. What is the magnitude of the magnetic field? r (mm) v1/2...
A common unit used to measure the energy of small particles is the electron volt (eV), which is equal to the magnitude of the charge on the electron (measured in coulombs C) multiplied by 1 volt (V). In chapter 17, you will learn coulombs multiplied by volts is equivalent to mass multiplied by length squared and divided by time squared. that 1) Which of the following quantities could be written in eV? Case A: Gravitational potential energy mgh, where m...
3. (a) Show that when a particle with mass m and charge q enters a magnetic field having its velocity v perpendicular to the direction of the magnetic field B, it will perform a mv circular path of radius R- qB (b) Using the previous result find an expression for the period T of the circular motion. (c) A charged particle moves into a region of uniform magnetic field, goes through half a circle and then exits that region, as...
27B -- Experiment: Magnetic Force on a Moving Charge - qolme Objective: In this module you will observe the trajectory of an electron beam in a uniform magnetic field oriented in various ways to the electron velocity. You will then use your observation of the radius of the electron trajectory to measure the charge to mass ratio for an electron. Equipment: One elm apparatus (Lurge mounted glass bulb with Helmholtz coils); one Leybold or PASCO power supply for electron gun...
How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces (e = 1.60 times 10^-19C) 1.60 times 10^-17 J -1.60 times 10^-17 J 1.6 J -1.6 J This cannot be determined because we do not know the distance traveled. If an electron...
Electric field.
6. An electron (charge q has a uniform field E- -Ej where E is a positive constant. The electron has mass m and, as shown below, is initially moving exactly horizontally with an initial velocity vo -Voi. The chamber is a horizontal distance L long. e) enters a capacitor which (a) Determine the r and y components of the electron's acceleration in terms of the given variables Fet (b) Determine the amount of time the electron spends in...
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