A steady current `I` is set up in a wire whose cross-sectional area decreases in the direction of the flow of the current. Then, as we examine the narrowing regionA. the current density decreases in value.B. the magnitude of the electric field increases.C. the current density remains constant.D. the average speed of the moving charges remains constant.

A steady current `I` is set up in a wire whose cross-sectional area de

1.	A steady current `I` is set up in a wire whose cross-sectional area decreases in the direction of the flow of the current. Then, as we examine the narrowing regionA. the current density decreases in value.B. the magnitude of the electric field increases.C. the current density remains constant.D. the average speed of the moving charges remains constant.
Answer» Correct Answer - B

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