A uniform disc of radius r and mass m is charged uniformly

Last updated: 6/24/2023

A uniform disc of radius r and mass m is charged uniformly with charge q This disc is placed flat on a rough horizontal surface having coefficient of friction on A uniform magnetic field is present in a circular region a r but varying at kt as shown in fig Find the time in second after which the disc begin to rotate Given r 1m m 18kg q 1 3 c u 0 1 K 4 g 10m s Ba disc