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Q4) An outer metal ring of radius 3m, surrounds an inner metal ring of radius 2 m, as shown in the figure. The current


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Q4) An outer metal ring of radius 3m, surrounds an inner metal ring of radius 2 m, as shown in the figure. The current in the outer ring is moving in the counterclockwise direction and it increased from 3A to 6A within 0.5 s. a) Find the magnetic fields (B1 and B2) at the center of the rings when the outer current is 3A and when the outer current is 6A b) Find the change in the magnetic flux at the center, due to the change in current c) Using Faraday's Law find the induced emf in the inner circular loop d) Using Lenz's find the direction of the induced current in the inner ring

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