A Flat Rectangular Loop of Wire Is Placed Between the Poles

question 77

Multiple Choice

A flat rectangular loop of wire is placed between the poles of a magnet, as shown in the figure. It has dimensions $w = 0.60 \mathrm {~m}$ and $L = 1.0 \mathrm {~m}$ , and carries a current $I = 2.0 \mathrm {~A}$ in the direction shown. The magnetic field due to the magnet is uniform and of magnitude $0.80 \mathrm {~T}$ . The loop rotates in the magnetic field and at one point the plane of the loop is perpendicular to the field. At that instant, what is the magnitude of the torque acting on the wire due to the magnetic field?

• A) \(0.40 \mathrm {~N} \cdot \mathrm { m }\)
• B) 0.30 N . m
• C) \(0.83 \mathrm {~N} \cdot \mathrm { m }\)
• D) \(0.96 \mathrm {~N} \cdot \mathrm { m }\)
• E) \(0.00 \mathrm {~N} \cdot \mathrm { m }\)

Determine the number of possible main effects and interactions in factorial designs.

Differentiate between repeated measures, independent groups, and mixed factorial designs.

Recognize the structure and implications of factorial designs in experimental research.

Calculate the total number of participants needed in different factorial design scenarios.

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Definitions:

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any prior learning.

Meat Powder

A powdered form of meat used in experiments, notably in Pavlov's conditioning studies as a stimulus for dogs.

Salivation

The secretion of saliva in the mouth, which is often an involuntary response to the presence or thought of food, preparing the mouth for eating.

Light

Electromagnetic radiation visible to the human eye, essential for vision and involved in a variety of biological and psychological effects on humans and other organisms.