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45. A long solenoid is fabricated by closely winding a wire of radius 0.5 mm over a cylindrical non magnetic frame so that the successive turns nearly touch each other what would be the Magnetic field B at the centre of the solenoid if it carries a current of 5 ampere ??

Answer» 45. A long solenoid is fabricated by closely winding a wire of radius 0.5 mm over a cylindrical non magnetic frame so that the successive turns nearly touch each other what would be the Magnetic field B at the centre of the solenoid if it carries a current of 5 ampere ??


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