9. (a) A circular coil of radius 20 cm is placed in an external magnetic field of strength 0.2 T so that the plane of th

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9. (a) A circular coil of radius 20 cm is placed in an external magnetic field of strength 0.2 T so that the plane of th

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9 A A Circular Coil Of Radius 20 Cm Is Placed In An External Magnetic Field Of Strength 0 2 T So That The Plane Of Th 1
9 A A Circular Coil Of Radius 20 Cm Is Placed In An External Magnetic Field Of Strength 0 2 T So That The Plane Of Th 1 (64.22 KiB) Viewed 46 times
9. (a) A circular coil of radius 20 cm is placed in an external magnetic field of strength 0.2 T so that the plane of the coil is perpendicular to the field. The coil is pulled out of the field in 0.5 s. Find the average induced emf during this interval. (b) A bar of length 2 m slides along metals rails at a speed of 5 m/s in a magnetic field of 0.2 T. What is the motional emf induced in the bar and rails? 10. Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 25 V, the secondary winding has 2000 turns, and the primary winding has 400 turns.
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