MCQ
A flat circular disc has a charge $ + Q$ uniformly distributed on the disc. A charge $ + q$ is thrown with kinetic energy $E$ towards the disc along its normal axis. The charge $q$ will
- AHit the disc at the centre
- BReturn back along its path after touching the disc
- CReturn back along its path without touching the disc
- ✓Any of the above three situations is possible depending on the magnitude of $E$
