A Loop of Wire (Resistance = 2

question 53

Multiple Choice

A loop of wire (resistance = 2.0 mΩ) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what current is induced in the loop at an instant when the current in the wire is increasing at a rate of 100 A/s?

• A)34 mA
• B)30 mA
• C)27 mA
• D)38 mA
• E)0.50 mA

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Definitions:

Astrocytes

Astrocytes are star-shaped glial cells in the brain and spinal cord involved in providing support and nutrition to nerve cells, maintaining the blood-brain barrier, and repairing the brain and spinal cord following traumatic injuries.

Microglia

Specialized immune cells found in the brain and spinal cord, involved in the maintenance of nerve cells and the response to injury or disease.

Ependymal Cells

Glial cells that line the ventricles in the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.

Oligodendrocytes

Oligodendrocytes are glial cells in the central nervous system that produce myelin, a substance crucial for the insulation of nerve fibers.