J. J. Thomson is best known for his discoveries about the nature of cathode rays. His other important contribution was the invention, together with one of his students, of the mass spectrometer, a device that measures the ratio of mass m to (positive) charge q of an ion The spectrometer consists of two regions as shown in the figure (Eigure 1) In the first region an electric field accelerates the ion and in the second the ion follows a circular arc in a magnetic field. The radius of curvature of the arc can be measured and then the m/q ratio can be found. ▼ Part A After being accelerated to a speed of 1.86x105 m/s, the particle enters a uniform magnetic field of strength 0.700 T and travels in a circle of radius 32.0 cm (determined by observing where it hits the screen as shown in the figure). The results of this experiment allow one to find m/q Find the ratio m/q for this particle. Express your answer numerically in kilograms per coulomb. ▸ View Available Hint(s) m/q= Submit ——| ΑΣΦ Provide Feedback → SMK ? Review kg/C Next >

J. J. Thomson is best known for his discoveries about the nature of cathode rays. His other important contribution was the invention, together with one of his students, of the mass spectrometer, a device that measures the ratio of mass m to (positive) charge q of an ion The spectrometer consists of two regions as shown in the figure (Eigure 1) In the first region an electric field accelerates the ion and in the second the ion follows a circular arc in a magnetic field. The radius of curvature of the arc can be measured and then the m/q ratio can be found. ▼ Part A After being accelerated to a speed of 1.86x105 m/s, the particle enters a uniform magnetic field of strength 0.700 T and travels in a circle of radius 32.0 cm (determined by observing where it hits the screen as shown in the figure). The results of this experiment allow one to find m/q Find the ratio m/q for this particle. Express your answer numerically in kilograms per coulomb. ▸ View Available Hint(s) m/q= Submit ——| ΑΣΦ Provide Feedback → SMK ? Review kg/C Next >

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter8: Electromagnetism And Em Waves

Section: Chapter Questions

Problem 9Q

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J. J. Thomson is best known for his discoveries about the nature of cathode rays. His other important contribution was the invention, together with one of his students, of the mass spectrometer, a device that measures the ratio of mass m to (positive) charge q of an ion. The spectrometer consists of two regions as shown in the figure.(Figure 1) In the first region an electric field accelerates the ion and in the second the ion follows a circular arc in a magnetic field. The radius of curvature of the arc can be measured and then the m/q ratio can be found. Part A After being accelerated to a speed of 1.00x105 m/s, the particle enters a uniform magnetic field of strength 0.900 T and travels in a circle of radius 33.0 cm (determined by observing where it hits the screen as shown in the figure). The results of this experiment allow one to find m/q. Find the ratio m/q for this particle. Express your answer numerically in kilograms per coulomb. ► View Available Hint(s) m/q= Submit V ΑΣΦ…
J. J. Thomson is best known for his discoveries about the nature of cathode rays. His other important contribution was the invention, together with one of his students, of the mass spectrometer, a device that measures the ratio of mass m to (positive) charge q of an ion. The spectrometer consists of two regions as shown in the figure. (Figure 1) In the first region an electric field accelerates the ion and in the second the ion follows a circular arc in a magnetic field. The radius of curvature of the arc can be measured and then the m/q ratio can be Figure V B • Part A Find the ratio m/q for this particle. Express your answer numerically in kilograms per coulomb. View Available Hint(s) After being accelerated to a speed of 1.21x105 m/s, the particle enters a uniform magnetic field of strength 0.700 T and travels in a circle of radius 35.0 cm (determined by observing where it hits the screen as shown in the figure). The results of this experiment allow one to find m/q. m/q= Submit…
An electron in a cathode ray tube is accelerated through a potential difference of 13550 V, then passes through the 2.37 cm wide region of uniform magnetic field in the diagram above. What magnetic field strength (in mT) will deflect the electron by 10°?
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, then passes through the d = 1.8-cm-wide region of uniform magnetic field in the figure(Figure 1). Figure 1 of 1 d OV 10 kV
J.J Thomson studied the ionization of atoms in collisions with electrons. He accelerated electrons through a potential difference, shot them into a gas of atoms, then used a mass spectrometer to detect any ions produced in collisions. By using different gases, he found that he could produced singly ionized atoms of all the elements that he tried. When he used higher accelerating voltages, he was able to prodce doubly ionized atoms of all elements except hydrogen. a.why did thomson have to use higher accelerating voltages to detect doubly ionized atoms than to detect singly ionized atoms? b. What conclusion or conclusions about hydrogenatoms can you draw from these observations? Be specific as to how your conlusion are related to the observations.
In an experiment for measuring m ratio, a cathode particle is passing through two deflecting plates maintained at a voltage difference of 40 V and separated by a distance of 2 cm. The cathode particle travelling at right angles to the field moves in a circular path of radius 2m. Determine the kinetic energy of the electron in eV.
A mass spectrometer is being used to monitor air pollutants. It is difficult, however, to separate molecules with nearly equal mass such as CO (28.0106 u) and N2 ( 28.0134u). How large a radius of curvature must a spectrometer have (Figure 1) if these two molecules are to be separated on the film by 0.65 mm ?
Of the following quantities, which one has dimension different from the remaining three? (a) Energy per unit volume (b) Force per unit area (c) Product of voltage and charge per unit volume (d) angular momentum
A beam of protons is directed in a straight line along the +z direction through a region of space in which there are crossed electric and magnetic fields. The electric field is 450 V/m in the -y direction and the protons move at a constant speed of 10^5 m/s. 1)What must be the magnitude of the magnetic field such that the beam of protons continues along its straight-line trajectory? (Express your answer using two significant figures.)
Equation1: Q(t)=CVcap(t) Equation 2: Qcharging(t)=CV(1−e^(−t/RC)) 1. Combine equations 1 and 2 to create an equation capable of finding the time-dependent voltage across a charging capacitor. Equation 3: I(t)≡(dQ(t))/(dt) 2. Combine equations 2 and 3 to create an equation capable of finding the time-dependent current across a charging capacitor.
X rays are a very penetrating form of electromagnetic radiation. X rays pass through the soft tissue of the body but are largely stopped by bones and other more dense tissues. This makes x rays very useful for medical and dental purposes, as you know. A schematic view of an x-ray tube and a driver circuit is given in Figure VI.1. A filament warms the cathode, freeing electrons. These electrons are accelerated by the electric field established by a high-voltage power supply connected between the cathode and a metal target. The electrons accelerate in the direction of the target. The rapid deceleration when they strike the target generates x rays. Each electron will emit one or more x rays as it comes to rest.An x-ray image is essentially a shadow; x rays darken the film where they pass, but the film stays unexposed, and thus light, where bones or dense tissues block x rays. An x-ray technician adjusts the quality of…
X rays are a very penetrating form of electromagnetic radiation. X rays pass through the soft tissue of the body but are largely stopped by bones and other more dense tissues. This makes x rays very useful for medical and dental purposes, as you know. A schematic view of an x-ray tube and a driver circuit is given in Figure VI.1. A filament warms the cathode, freeing electrons. These electrons are accelerated by the electric field established by a high-voltage power supply connected between the cathode and a metal target. The electrons accelerate in the direction of the target. The rapid deceleration when they strike the target generates x rays. Each electron will emit one or more x rays as it comes to rest.An x-ray image is essentially a shadow; x rays darken the film where they pass, but the film stays unexposed, and thus light, where bones or dense tissues block x rays. An x-ray technician adjusts the quality of…