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- A proton precesses with a frequency p in the presence of a magnetic field. If the intensity of the magnetic field is doubled, what happens to the precessional frequency?arrow_forward17. Review. One electron collides elastically with a second AMI electron initially at rest. After the collision, the radii of their trajectories are 1.00 cm and 2.40 cm. The trajec- tories are perpendicular to a uniform magnetic field of magnitude 0.044 0 T. Determine the energy (in keV) of the incident electron.arrow_forwardAn alpha particle with velocity v = (3 x 105,0,0) m/s enters a region where themagnetic field has a value B = (0,0,1.2) T. Determine the required magnitude and directionof an electric field E that will allow the alpha particle to continue to move along the x axis.arrow_forward
- In the figure, an electron accelerated from rest through potential difference V₁-1.10 kV enters the gap between two parallel plates having separation d = 25.7 mm and potential difference V₂= 104 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? h Number ( i î+ i d V₂ k) Unitsarrow_forwardan electron accelerated from rest through potential difference V1 1.00 kV enters the gap between two parallel plates having separation d =20.0 mm and potential difference V2 =100 V.The lower plate is at the lower potential. Neglect fringing and assume that the electron’s velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap?arrow_forwardAssume you have a spherical magnetic particle that is 4-nm in diameter with a uniaxial anisotropy Ku=5x10³ J/m³, a magnetization of 1x106 A/m and assuming an attempt time is to = 10-1⁰ sec.:arrow_forward
- In the figure, an electron accelerated from rest through potential difference V₁-1.12 kV enters the gap between two parallel plates having separation d = 21.0 mm and potential difference V₂= 129 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number ( i + k) Unitsarrow_forwardIn the Bohr model for the hydrogen atom, the electron must travel in a circular orbit of radius 5.3 x 10-11 m. Calculate the current and magnetic moment associated with this electron. Given that the magnetic field strength is in a magnitude of 9.9 x 106 A/m.arrow_forwardIn the figure, an electron accelerated from rest through potential difference V₁=1.07 kV enters the gap between two parallel plates having separation d = 19.5 mm and potential difference V₂= 177 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number (i î+ i V₂ k) Unitsarrow_forward
- î × ƒ = k‚ ƒ × k = î, k×î=j, A× B = -B × A, |Ã× B|= AB sin 0, FB = qv×B,H R = = mv ‚ FÅ = IL × B. qB Problem 1: A proton (q B = = +e = +1.60 × 10-19 C) moves through a uniform magnetic field given by (0.011 -0.02ĵ+ 0.03) T. At this instant the proton has a velocity given by v = v×î + vyĵ + (2000 m/sec)k and the magnetic force on the proton is F = (4.0 × 10¯¹7N)î + (2.0 × 10¯¹7 N)ĵ. What are v and vy? Answer: vx = -3500 m/sec and vy = 7000 m/sec.arrow_forwardIn the figure, an electron accelerated from rest through potential difference V1=1.26 kV enters the gap between two parallel plates having separation d = 19.6 mm and potential difference V2= 52.4 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In UNIT-VECTOR NOTATION, what uniform magnetic field allows the electron to travel in a straight line in the gap?arrow_forwardIn the figure, an electron accelerated from rest through potential difference V1=1.13 kV enters the gap between two parallel plates having separation d = 24.3 mm and potential difference V2= 74.2 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number i <) Units +arrow_forward
- Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning