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A wire shaped as a semicircle of radius 'a' rotates about an axis OO' with an angular velocity in a uniform magnetic field of induction B. The rotation axis is perpendicular to the field direction. The total resistance of the circuit is equal to R. Neglecting the magnetic field of induced current, find the mean amount of thermal power being generated in the loop during a rotation period.


A wire shaped as a semicircle of radius 'a' rotates about an axis OO' with an angular velocity in a uniform magnetic field of induction B. The rotation axis is perpendicular to the field direction. The total resistance of the circuit is equal to R. Neglecting the magnetic field of induced current, find the mean amount of thermal power being generated in the loop during a rotation period.


Grade:9

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