A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.80 mm, and the field varies with time. Inițially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 140 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in pV and the direction as seen from above.) magnitude direction ---Select- v as seen from above (b) Immediately after this, in the next 55.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circula region over this time period? (Enter the magnitude in uV and the direction as seen from above.) magnitude

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A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.80 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above,
perpendicular to the circular plane, in a time of 140 ms.
(a) What is the average induced emf around the border of the circular region? (Enter the magnitude in µV and the direction as seen from above.)
magnitude
µV
direction
-Select--
as seen from above
(b) Immediately after this, in the next 55.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular
region over this time period? (Enter the magnitude in µV and the direction as seen from above.)
magnitude
direction
Select---
v as seen from above
Transcribed Image Text:A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.80 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 140 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in µV and the direction as seen from above.) magnitude µV direction -Select-- as seen from above (b) Immediately after this, in the next 55.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in µV and the direction as seen from above.) magnitude direction Select--- v as seen from above
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