A Conducting Bar Moves to the Left at a Constant

question 36

Multiple Choice

A conducting bar moves to the left at a constant speed v on two conducting rails joined at the left as shown. As a result of the bar moving through a constant magnetic field, a current I is induced in the indicated direction. Which one of the following directions is that of the magnetic field?

• A)toward the right
• B)toward the left
• C)parallel to the long axis of the bar
• D)into the page
• E)out of the page

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Definitions:

Ventricle

A chamber of the heart or brain that receives or pumps out blood or cerebrospinal fluid, respectively.

Arbor Vitae

Refers to the treelike appearance of the cerebellar white matter when viewed in cross section, important for the coordination of muscle movements.

Cerebellar White Matter

The white neural tissue inside the cerebellum that contains myelinated nerve fibers connecting different parts of the cerebellum.

Primary Motor Cortex

The brain region located in the frontal lobe, responsible for the voluntary control of skeletal muscles.