Concept explainers
Figure 28-28 shows the path of an electron in a region of uniform magnetic field. The path consists of two straight sections, each between a pair of uniformly charged plates, and two half-circles. Which plate is at the higher electric potential in (a) the top pair of plates and (b) the bottom pair? (c) What is the direction of the magnetic field?
Figure 28-28 Question 8.
Trending nowThis is a popular solution!
Chapter 28 Solutions
Fundamentals Of Physics - Volume 1 Only
Additional Science Textbook Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Physics: Principles with Applications
College Physics (10th Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
- A singly ionized Nickel atom has an overall charge of +1.602 x 10-19 C and a mass, m = 9.80 x 10-26 kg. It travels to the right with speed v entering a velocity selector and then a deflection chamber. In both the velocity selector and deflection chamber the uniform magnetic field is 0.50-T directed outward. a) If the radius of this particle’s curved path within the deflection chamber is measured to be 1.30 x 10-2 m, what was the speed of this particle? b)What must the electric field magnitude and direction within the velocity selector be?c) A particle of unknown mass enters the same deflection chamber with the same charge and velocity as the nickel atom. If the radius of its curved path in the deflection chamber is measured to be 1.50 x 10-2 m, what is its mass?arrow_forwardIn the figure, an electron accelerated from rest through potential difference V1=1.49 kV enters the gap between two parallel plates having separation d = 17.6 mm and potential difference V2= 164 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_forwardAn electron (charge q = -e = -4.60 10-19 C, mass m = 9.41 10-31 kg) is moving along a circular path in a uniform magnetic field as shown. The speed of the electron is 2.5 106 m/s and the magnitude of the magnetic field is 0.45 T. (a) If the electron was accelerated through a potential difference in order to reach the given speed, find the magnitude (absolute value) of this potential difference in V.(b) Find the radius of the circular path taken by the electron in the magnetic field in m.arrow_forward
- A proton, with mass 1.67 × 10-27kg and charge +1.6 × 10-19C, is sent with velocity 7.1 × 104 m/s in the +x direction into a region where there is a uniform electric field of magnitude 730 V/m in the +y What are the magnitude and direction of the uniform magnetic field in the region, if the proton is to pass through undeflected? Assume that the magnetic field has no x-component and neglect gravitational effects. (Answer: 0.010 T, +z direction)arrow_forwardAn electron in a TV CRT moves with a speed of 6.00 X 107 m/s,in a direction perpendicular to the Earth’s field, which has a strength of 5.00 X 10-5 T. If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.)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? I need this in units of mT.arrow_forward
- A current with a constant current density of Js= 1/π (A/m²) in the +z direction through the wire of radius a= 2 m, inside radius = 3m. And from the infinitely long cylindrical shell with a tooth radius of c=4m, a constant I=4 Ampere current flows homogeneously in the -z direction. Accordingly, using the Ampere formula, calculate the magnetic field in the regions r <a, a<r<b, b<r<c , and r>c.arrow_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_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning