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19. A long solenoid of radius 2cm has 100turns/cm and carries a current of 5A .A coil of radius 1cm having 100 turns and total resistance 20 ohm is placed inside the solenoid coaxially .the coil is connected to galvanometer .if the current in the solenoid is reversed in the direction find the charge flown through the galvonometer.

Answer» 19. A long solenoid of radius 2cm has 100turns/cm and carries a current of 5A .A coil of radius 1cm having 100 turns and total resistance 20 ohm is placed inside the solenoid coaxially .the coil is connected to galvanometer .if the current in the solenoid is reversed in the direction find the charge flown through the galvonometer.


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