A non-conducting, non-magnetic cylindrical object ofmass m and carrying a static charge of Q is placedinside a long solenoid that is carrying a constantcurrent I.Both the solenoid and the cylindrical object aremotionless to begin with. Then, the current in thesolenoid is reduced to I/2. The time it takes for thecurrent to make this change is t seconds, and thecylindrical object begins to rotate, achieving a finalangular speed of w. Some time later, the current isrestored back to I. As before, the change from 1/2 backto I also takes t seconds. What happens to thecylindrical object during the time that the current isbeing restored back to its original value?Its rotation speeds up until the angular speed reaches 2wO The rotation ofcylindrical object maintains the samemagnitude but reverses directionIts rotation slows and comes to a stop when the currentgets back to its original valueO It continues to rotate in the same direction at an angularspeed of w

Required : The final speed of the charged non conducting cylinder placed inside the solenoid.

A non-conducting, non-magnetic cylindrical object of mass m and carrying a static charge of Q is placed inside a long solenoid that is carrying a constant current I. Both the solenoid and the cylindrical object are

A non-conducting, non-magnetic cylindrical object of mass m and carrying a static charge of Q is placed inside a long solenoid that is carrying a constant current I. Both the solenoid and the cylindrical object are

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 88AP: Two long coaxial copper tubes, each of length L, are connected to a battery of voltage V. The inner...

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Concept explainers

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.

Question

A non-conducting, non-magnetic cylindrical object of
mass m and carrying a static charge of Q is placed
inside a long solenoid that is carrying a constant
current I.
Both the solenoid and the cylindrical object are
motionless to begin with. Then, the current in the
solenoid is reduced to I/2. The time it takes for the
current to make this change is t seconds, and the
cylindrical object begins to rotate, achieving a final
angular speed of w. Some time later, the current is
restored back to I. As before, the change from 1/2 back
to I also takes t seconds. What happens to the
cylindrical object during the time that the current is
being restored back to its original value?
Its rotation speeds up until the angular speed reaches 2w
O The rotation of
cylindrical object maintains the same
magnitude but reverses direction
Its rotation slows and comes to a stop when the current
gets back to its original value
O It continues to rotate in the same direction at an angular
speed of w

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