OTimer Notes e Evaluate 4-Feedback Course Contents » » Pri: A circular conductin
ID: 1789432 • Letter: O
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OTimer Notes e Evaluate 4-Feedback Course Contents » » Pri: A circular conducting loop of radius 15.0 cm is located in a region of homogeneous magnetic field of magnitude 0.700 T pointing perpendicular to the plane of the loop. The loop is connected in series with a resistor of 229 . The magnetic field is now increased at a constant rate by a factor of 2.70 in 17.0s. malgalete theld nia inctudsi ng the induced emf in the loop while the magnetic field is increasing. 4.95×10-3 V You are correct. Previous Tries Your receipt no. is 160-3572 Calculate the magnitude of the current induced in the loop while the field is increasing. 2.16×10-5 A You are correct. Your receipt no. is 160-7055 With the magnetic field held constant at its new value of 1.89 T calculate the magnitude of the average induced voltage in the loop while it is pulled horizontally out of the magnetic field region during a time interval of 4.30 s 11.96V Now the field is constant and the area changes. Think about by how much the area changes: from fully in the field to completely out. Submit Answer Incorrect. Tries 3/10 Previous Tries Post Discussion Send FeedbackExplanation / Answer
flux = N B A = N B ( pi r^2)
flux = 1 x 1.89 x pi x 0.15^2 = 0.134 Wb
induced emf = change in flux / time
= 0.134 - 0 / 4.3 0
= 0.031 Volt or 31 mV
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