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Which of the following is not a point of similarity between Biot-Savart law and Coulomb’s law.
a) Both fields depend inversely on the square of the distance from the source to the point of observation
b) They are not a universal law
c) The principle of superposition does not apply to both
d) Both are long-range fields
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Solved in 4 steps
- Explain the reason for the speedup and slow down of an electron in atomic orbit placed in magnetic field.A proton beam accelerated by a 100 kV potential difference enters a region where there is a 0.1 T magnetic field at right angles to the beam. i) Calculate the radius of curvature of the beam in the magnetic field region. ii) Sketch the trajectory of the proton beam and state how the velocity of the protons has been affected by the magnetic field.An alpha particle ( Helium nucleus) having a mass of 4 protons is shot into a magnetic field of 0.2 T at right angles to the field and moves in a circle of radius 20 cm. Find a) the momentum of the alpha particle b) its velocity c) kinetic energy.
- Use the following constants if necessary. Coulomb constant, k= 8.987 x 10° N. m?/C2. Vacuum permitivity, e = 8.854 x 1012 F/m. Magnetic Permeability of vacuum, 40 = 12.566370614356 x 10-7 H)m. Magnitude of the Charge of one electron, e = -1.60217662 x 10-19 C. Mass of one electron, me = 9.10938356 x 10-31 kg. Unless specified otherwise, each symbol carries their usual meaning. For example, µC means micro coulomb. Lorentz Force is given by F= qE + qv, x B Given to vector, v = ((0) î + (7) + (0) Â) x 10° m/s and B= ((3) i + (5) + (5) k) Tesla, If the charge is given by g= 19 nC and E=0 Then, Find the Force F. x component Give your answer up to at least three significance digits. N y component Give your answer up to at least three significance digits. N z component Give your answer up to at least three significance digits.Complete SolutionsELECTROMAGNETICS: Magnetism
- 9. Integrated Concepts & Review (a) A 0.140-kg baseball, pitched at 40.0 m/s horizontally and perpendicular to the Earth’shorizontalB= 5.0×10^−5 T field, has a 100-nC charge on it. What distance is it deflectedfrom its path by the magnetic force, after traveling 30.0 m horizontally? (b) Would you suggest this as a secret technique for a pitcher to throw curve balls?Derive an equation for the velocity of the charged particle that will pass straight through the combined field.