physics To understand how the charges within a conductor respond to an externall

Question

physics

To understand how the charges within a conductor respond to an externally applied electric field To illustrate the behavior of charge inside conductors, consider a long conducting rod that is suspended by insulating strings (see the figure). Assume that the rod is initially electrically neutral, and that it remains so for this discussion. The rod is positioned along the x axis, and an external electric field that points in the positive x direction (to the right) can be applied to the rod and the surrounding region. The atoms in the rod are composed of positive nuclei (indicated by plus signs) and negative electrons (indicated by minus signs). Before application of the electric What is the force felt by the electrons and the nuclei in the rod when the external field described in the problem introduction is applied? (Ignore internal fields in the rod for the moment.) Both electrons and nuclei experience a force to the right. The nuclei experience a force to the right and the electrons experience a force to the left. O The electrons experience a force to the left but the nuclei experience no force. The electrons experience no force but the nuclei experience a force to the right. What is the motion of the negative electrons and positive atomic nuclei caused by the external field? O Both electrons and nuclei move to the right. The nuclei move to the right and the electrons move to the left through equal distances. O The electrons move to the left and the nuclei are almost stationary. The electrons are almost stationary and the nuclei move to the right. This question will be shown after you complete previous question(s).

Explanation / Answer

part a) answer option b electrons experince force to left and nuclei to right

part b) electrons move towards left but for is not sufficient to move nuclei to right so nuclei are almost stationary

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