The Magnetic Field and the Number of Turns of a Coil

question 83

Multiple Choice

The magnetic field and the number of turns of a coil of wire are doubled, while its area is reduced by a factor of 2. Assuming that all the other parameters remain the same, what happens to the induced emf in that coil of wire?

• A) It is doubled.
• B) It is reduced by a factor of 2.
• C) It is quadrupled.
• D) It is reduced by a factor of 4.
• E) It stays the same.

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Definitions:

Intertubercular Sulcus

A groove in the humerus bone that accommodates part of the biceps muscle tendon.

Biceps Brachii

A muscle of the upper arm that flexes the elbow and rotates the forearm.

Pectoral Girdle

The skeletal framework of the shoulder region that supports arm movement, consisting of the scapulae and clavicles.

Clavicles

Long bones that serve as a strut between the shoulder blade and the sternum, also known as collarbones.