How Much Current Will Be Flowing Through a 40

question 52

Multiple Choice

How much current will be flowing through a 40.0 m length of cylindrical metal wire with radius 0.0 mm if it is connected to a source supplying 16.0 V? The resistivity of this metal is

• A) 1200 A
• B) 9.5 × 10⁸ A
• C) 68 nA
• D) 710 A

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Definitions:

Tunica Media

The tunica media is the middle layer of the wall of blood vessels and lymphatic vessels, consisting predominantly of smooth muscle cells and elastic tissue, contributing to vascular tone and blood flow regulation.

Endothelium

A thin layer of cells lining the blood and lymphatic vessels, heart, and some other body cavities.

Tunica Intima

The innermost layer of a blood vessel, composed of endothelial cells, providing a smooth lining for blood flow.

Artery Wall

The layered structure of an artery, composed of an inner endothelium, a middle muscular layer, and an outer connective tissue.