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  3. 1. if 55.1 cm of copper wire (diameter = 1.18 mm,

1. If 55.1 cm of copper wire (diameter = 1.18 mm, resistivity = 1.69 × 10-8Ω·m)...

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Physics

1. If 55.1 cm of copper wire (diameter = 1.18 mm, resistivity =1.69 × 10-8Ω·m) is formed into a circular loop andplaced perpendicular to a uniform magnetic field that is increasingat the constant rate of 12.6 mT/s, at what rate is thermal energygenerated in the loop?

2. A rectangular loop (area = 2.7 m2) turns in auniform magnetic field, B = 3.2 T. When the angle betweenthe field and the normal to the plane of the loop is π/2 rad andincreasing at 2.6 rad/s, what emf is induced in the loop?

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