A circular copper disc 10 cm in diameter rotates at 1800

Last updated: 6/10/2023

A circular copper disc 10 cm in diameter rotates at 1800 revolution per minute about an axis through E its centre and at right angles to disc A uniform field of induction B of 1 Wb mis perpendicular to disc What potential difference is developed between the axis of the disc and the rim 5 a 0 023 V c 23 V b 0 23 V d 230 V