Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition

20-3: Force on Electric Current in Magnetic Field
20-4: Force on Charge Moving in Magnetic Field
20-5 and 20-6: Magnetic Field of Straight Wire, Force between Two Wires
20-7: Solenoids and Electromagnets
20-8: Ampère's Law
20-9 and 20-10: Torque on Curent Loop, Motors, Galvanometers
20-11: Mass Spectrometer
20-12: Ferromagnetism, Hysteresis

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 15

A helium ion (Q = +2e) whose mass is 6.6×1027 kg6.6 \times 10^{-27} \textrm{ kg} is accelerated by a voltage of 3700 V.

  1. What is its speed?
  2. What will be its radius of curvature if it moves in a plane perpendicular to a uniform 0.340-T field?
  3. What is its period of revolution?
  1. 6.0×105 m/s6.0 \times 10^5 \textrm{ m/s}
  2. 3.6 cm3.6 \textrm{ cm}
  3. 3.8×107 s3.8 \times 10^{-7} \textrm{ s}
Giancoli 7th Edition, Chapter 20, Problem 15 solution video poster

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