Torque: a Circular Loop of Diameter 10 Cm, Carrying a Current

question 5

Multiple Choice

Torque: A circular loop of diameter 10 cm, carrying a current of 0.20 A, is placed inside a magnetic field = 0.30 T . The normal to the loop is parallel to a unit vector = -0.60 - 0.80 . Calculate the magnitude of the torque on the loop due to the magnetic field.

• A) 4.7 × 10^-4 N ∙ m
• B) 2.8 × 10^-4 N ∙ m
• C) 0.60 × 10^-4 N ∙ m
• D) 1.2 × 10^-4 N ∙ m
• E) zero

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Definitions:

Natural Hearing

The ability to perceive sound through the ear's normal anatomical structure and neural processes without the aid of any artificial devices.

Echolocation

The biological sonar used by several kinds of animals to navigate and to locate prey or other objects by emitting sound and listening to the echoes.

Ventral Auditory Pathway

A pathway in the brain involved in processing the aspects of sound related to meaning and speech comprehension.

Visual Cortex

The region within the occipital lobe of the cerebral cortex responsible for interpreting visual data.