A rectangular loop of wire that can rotate about an axis through its center is placed between the poles of a magnet in a $\vec { B }$ field of 0.40 T,as shown in the figure.The length of the loop L is 0.16 m and its width w is 0.040 m.What is the magnetic flux through the loop when the plane of the loop makes an angle of 60° with the $\vec { B }$ field? A)2.6 × 10^-3 T ∙ m² B)1.3 × 10^-3 T ∙ m² C)0 T ∙ m² D)2.2 × 10^-3 T ∙ m² E)0.80 T ∙ m²

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The Answer of A rectangular loop of wire that can rotate about an axis through its center is placed between the poles of a magnet in a $\vec { B }$ field of 0.40 T,as shown in the figure.The length of the loop L is 0.16 m and its width w is 0.040 m.What is the magnetic flux through the loop when the plane of the loop makes an angle of 60° with the $\vec { B }$ field? A)2.6 × 10^-3 T ∙ m² B)1.3 × 10^-3 T ∙ m² C)0 T ∙ m² D)2.2 × 10^-3 T ∙ m² E)0.80 T ∙ m²

A Rectangular Loop of Wire That Can Rotate About an Axis