Solenoids: a Solenoid Is Wound with 970 Turns on a Form

question 69

Multiple Choice

Solenoids: A solenoid is wound with 970 turns on a form 4.0 cm in diameter and 50 cm long. The windings carry a current I in the sense that is shown in the figure. The current produces a magnetic field, of magnitude near the center of the solenoid. Find the current in the solenoid windings. (μ₀ = 4π × 10^-7 T ∙ m/A)

• A) 1.8 A
• B) 1.5 A
• C) 1.3 A
• D) 2.2 A
• E) 2.0 A

Understand the framework and principles of developmental psychopathology.

Identify common developmental disorders and their treatment.

Recognize the role of social factors in child development and learning.

Understand the importance and characteristics of different types of tests in child education.

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Definitions:

Magnetic Resonance Imaging

is a medical imaging technique that uses magnetic fields and radio waves to create detailed images of the organs and tissues in the body.

Electroencephalogram

An electroencephalogram (EEG) is a test that records electrical activity in the brain, used to diagnose neurological conditions and for scientific research into brain functions.

Electromyogram

A diagnostic test that measures the electrical activity of muscles in response to stimulation.

Functional MRI

Magnetic resonance imaging uses a magnet to obtain scans of structures of the brain. Functional magnetic resonance imaging (fMRI) provides information on the amount of activity in different brain structures.