A uniform magnetic field of 2.00×10−3 T is applied to put an electron into a circular orbit with angular momentum 5.00×10−25 kg m2 /s. Calculate the orbital radius and the speed of the electron.

A uniform magnetic field of 2.00×10−3 T is applied to put an electron into a circular orbit with angular momentum 5.00×10−25 kg m2 /s. Calculate the orbital radius and the speed of the electron.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter9: Atomic Structure

Section: Chapter Questions

Problem 5P: The force on a magnetic moment z in a nonuniform magnetic field Bz is given by Fz=zdBzdz If a beam...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

A uniform magnetic field of 2.00×10−3
T is applied to put an electron into a
circular orbit with angular momentum 5.00×10−25 kg m2
/s. Calculate the orbital
radius and the speed of the electron.

Definition Definition Product of the moment of inertia and angular velocity of the rotating body: (L) = Iω Angular momentum is a vector quantity, and it has both magnitude and direction. The magnitude of angular momentum is represented by the length of the vector, and the direction is the same as the direction of angular velocity.

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