The magnitudes of the electric and magnetic fields in a velocity selector are 1.8 × 105 V/m and 0.080 T, respectively. (a) What speed must a proton have to pass through the selector? (b) Also calculate the speeds required for an alpha-particle and a singly ionized s O16 atom to pass through the selector.

A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 1.60x105 m/s and enter a uniform magnetic field of 0.6 T directed perpendicularly to the velocity of the ions. (c) What is the distance between the impact points formed on the photographic plate by singly charged ions of 235U and 238U?

(a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek and B = B ĵ, with B = 25.0 mT. Find the value of E (in kV/m) such that a 770 eV electron moving in the negative x-direction is undeflected. kv/m (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

A particle passes through a mass spectrometer as illustrated in the figure below. The electric field between the plates of the velocity selector has a magnitude of 8060 V/m, and the magnetic fields in both the velocity selector and the deflection chamber have magnitudes of 0.0920 T. In the deflection chamber the particle strikes a photographic plate 39.6 cm removed from its exit point after traveling in a semicircle. The diagram depicts a velocity selector. The plane of the page is filled with symmetrically arranged crosses labeled vector B0, in above a horizontal plate, and vector Bin below the horizontal plate. Below the horizontal plate, two vertical plates are placed parallel to each other in the right position of the field. The left plate is positively charged and the right plate is negatively charged. The electric field vector E points from the positive plate to the right toward the negative plate. A positively charged particle of charge q and velocity vector v pointing upward…

(a) A velocity selector consists of electric and magnetic fields described by the expressions E = EK and B = Bĵ, with B = 23.0 mT. Find the value of E (in kv/m) such that a 780 eV electron moving in the negative x-direction is undeflected. kv/m (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

(a) A velocity selector consists of electric and magnetic fields described by the expressions E = E K ar undeflected. kv/m and B = Bĵ, with B = 19.0 mT. Find the value of E (in kV/m) such that a 820 eV electron moving in the negative x-direction is (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

(a) A velocity selector consists of electric and magnetic fields described by the expressions E = EK and B = B ĵ, with B = 18.0 mT. Find the value of E (in kV/m) such that a 840 eV electron moving in the negative x-direction is undeflected. 309 kv/m (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

A particle passes through a mass spectrometer as illustrated in the figure below. The electric field between the plates of the velocity selector has a magnitude of 7930 V/m, and the magnetic fields in both the velocity selector and the deflection chamber have magnitudes of 0.0913 T. In the deflection chamber the particle strikes a photographic plate 11.9 cm removed from its exit point after traveling in a semicircle. '0, in Photographic plate Bin x + Velocity selector E (a) What is the mass-to-charge ratio of the particle? kg/C (b) What is the mass of the particle if it is doubly ionized? kg (c) What is its identity, assuming it's an element? (Enter the name of an element.) X- 1x +