Shortcut Methods

2 : Use of Maxwell’s Equations
Solution :

Familiarize yourself with Maxwell’s amended Ampere’s Law: ( \nabla \times \mathbf{B} = \mu_0 \mathbf{J} + \mu_0 \varepsilon_0 \frac{\partial \mathbf{E}}{\partial t} ). For JEE problems, knowing this equation and its implications can be a huge time-saver.