A Narrow Copper Wire of Length L and Radius B

question 6

Multiple Choice

A narrow copper wire of length L and radius b is attached to a wide copper wire of length L and radius 2b,forming one long wire of length 2L.This long wire is attached to a battery,and a current is flowing through it.If the electric field in the narrow wire is E,the electric field in the wide wire is

• A) E.
• B) 2E.
• C) 4E.
• D) E/2.
• E) E/4.

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Definitions:

Tissue Transplant Rejection

The immune system's response against a transplanted organ or tissue, leading to its failure and potential loss.

Carrier Proteins

Proteins that transport specific substances across cell membranes through a change in their own structure, vital for the movement of various molecules across cellular barriers.

Receptor Proteins

Proteins on the cell surface or within cells that bind to specific molecules, triggering a response in the cell.

Diffusion

The passive movement of molecules or particles from an area of higher concentration to an area of lower concentration, until equilibrium is reached.