Ampere's Law and Displacement Current: Practice Problem & Solution

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Ampere's Law and Displacement Current. Understanding the underlying formula is key to arriving at the correct answer below:

Displacement current is given by \(I_d = \varepsilon_0 \frac{d\Phi_E}{dt}\). Hence, it exists whenever the electric field changes (increases or decreases) with time.