Rotational Motion
- Rotational motion refers to the movement of an object around an axis. It involves the study of objects that rotate or spin.
- Key concepts in rotational motion include angular velocity, angular acceleration, moment of inertia, torque, and rotational kinetic energy.
- Rotational motion is governed by Newton's laws of motion, similar to linear motion but with additional considerations for rotational aspects.
- Applications of rotational motion include the motion of planets, spinning of wheels, and the movement of objects like tops and gyroscopes.

Electrostatics
- Electrostatics deals with the study of stationary electric charges and the forces between them.
- Key concepts in electrostatics include electric field, electric potential, electric potential energy, and capacitance.
- Coulomb's law is a fundamental principle in electrostatics, describing the force between two charged objects.
- Applications of electrostatics include the behavior of lightning, the functioning of capacitors, and the interactions between charged particles.

Magnetism
- Magnetism is the study of magnetic fields and their interactions with magnetic materials.
- Key concepts in magnetism include magnetic field, magnetic force, magnetic flux, and magnetic poles.
- The behavior of magnets is governed by the laws of magnetism, including Ampère's law and Faraday's law of electromagnetic induction.
- Applications of magnetism include the operation of electric motors, the functioning of MRI machines, and the behavior of compass needles.
In conclusion, understanding rotational motion, electrostatics, and magnetism is essential for a comprehensive understanding of physics, especially in the context of preparing for exams like JEE Main & Advanced.