A Flat Rectangular Loop of Wire Is Placed Between the Poles

question 46

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 m and L = 1.0 m,and carries a current I = 2.0 A in the direction shown.The magnetic field due to the magnet is uniform and of magnitude 0.80 T.The loop rotates in the magnetic field and at one point the plane of the loop is parallel to the field.At that instant,what is the magnitude of the torque acting on the wire due to the magnetic field?

• A)0.00 N ∙ m
• B)0.40 N ∙ m
• C)0.48 N ∙ m
• D)0.83 N ∙ m
• E)0.96 N ∙ m

Understand the central limit theorem and its implications for the distribution of sample means.

Identify the effects of sample size on the sampling distribution and standard error.

Determine the probability and standard error in normally distributed populations.

Apply the finite population correction factor when sampling from finite populations.

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