Which of the following is not an accurate statement about a conductor? Electrons

Question

Which of the following is not an accurate statement about a conductor? Electrons in a conductor are free to move about through the material. All excess charge resides on the surface of a conductor that is in electrostatic equilibrium. On an irregularly shaped conductor excess charge tends to avoid sharp points or locations of greatest curvature. The potential difference between any two points within or on the surface of a conductor in electrostatic equilibrium is zero. All are accurate statements. Which of the all of following are correct about the direction of the electric field? Circle all that apply. The direction of the electric field is perpendicular to the lines of force. The direction of the electric field is perpendicular to lines of equal potential. The direction of the electric field is tangent to the lines of force. The direction of the electric field is tangent to lines of equal potential. none are correct Draw the field lines (solid) and equipotentials

Explanation / Answer

1). In conductor electrons are loosly bound and almost free to move through the conductor. Hence 1st statement is correct.

Also now all the charges resides on the surface of conductor and Electrostatic Potential inside the conductor remains same hence potential difference between any two points on the conductor will be zero only. Hence 2nd and 4th statement is also correct.

But there is nothing like charges don't reside at sharp edges or something. Hence 3rd statement is incorrect.

Hence correct option: (c).

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