A Rectangular Loop of Wire That Can Rotate About an Axis

question 376

Multiple Choice

A rectangular loop of wire that can rotate about an axis through its center is placed between the poles of a magnet in a magnetic field with a strength of $0.40 \mathrm {~T}$ , as shown in the figure. The length of the loop $L$ is $0.16 \mathrm {~m}$ and its width $w$ is $0.040 \mathrm {~m}$ . What is the magnetic flux through the loop when the plane of the loop makes an angle of $60 ^ { \circ }$ with the magnetic field?

• A) \(0.80 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }\)
• B) \(2.6 \times 10 ^ { - 3 } \mathrm {~T} \cdot \mathrm { m } ^ { 2 }\)
• C) \(1.3 \times 10 ^ { - 3 } \mathrm {~T} \cdot \mathrm { m } ^ { 2 }\)
• D) \(2.2 \times 10 ^ { - 3 } \mathrm {~T} \cdot \mathrm { m } ^ { 2 }\)
• E) \(0 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }\)

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Definitions:

Endocrine Glands

Glands of the endocrine system that release hormones directly into the bloodstream to regulate various bodily functions.

Hormones

Chemical substances, released from endocrine glands, that travel through the bloodstream to targeted tissues; the tissues are later influenced by the hormones.

Gonads

Sex glands responsible for producing gametes (sperm in males and eggs in females) and sex hormones.

Secondary Sex Characteristics

Physical changes during puberty that are not directly related to reproduction but that indicate the differences between the sexes.