The Magnetic Field Inside a Circular Loop of Wire of Radius

question 44

Multiple Choice

The magnetic field inside a circular loop of wire of radius 30 cm increases at a constant rate from 2.0 × 10^-3 T to 3.5 × 10^-3 T in 0.47 s.If the resistance of the loop is 0.31 Ω,what is the current in the loop?

• A)7.4 × 10^-4 A
• B)5.8 × 10^-4 A
• C)2.9 × 10^-3 A
• D)5.8 × 10^-3 A

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Definitions:

Cephalic

Referring to the head or the head end of the body.

Basilic

Often related to the basilic vein, which is a large vein on the upper arm that helps drain parts of the hand and forearm.

Vertebral Artery

The vertebral artery is one of the major arteries of the neck that supplies blood to the brain, particularly the posterior portion, including the cerebellum and the brainstem.

Posterior Cerebral Artery

A blood vessel that supplies blood to the occipital lobe of the brain, important for vision.