a 3 b 4 47 As shown in figure a conducting circular loop of

Last updated: 6/24/2023

a 3 b 4 47 As shown in figure a conducting circular loop of radius a placed in a uniform perpendicular magnetic field B A metal rod OA is pivoted at centre O of the loop The other end A of the rod touches the loop The rod OA and the loop are resistanceless but a resistor having resistance R is connected between O and a fixed point C on the loop The rod OA made to rotate anticlockwise at a small but uniform angular speed by an external force The current in the resistance R is X X 1 I 3 X X Boa 2R Bwa Ox www 34x RE C UX A b 2 I X X X B w a 2R B a