Question

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates :

• A. there is no current.
• B. displacement current of magnitude equal to 1 flows in the same direction as 1.
• C. displacement current of magnitude equal to 1 flows in a direction opposite to that of 1.
• D. displacement current of magnitude greater than 1 flows but can be in any direction.

Answer 1

Answer: (B)

displacement current of magnitude equal to 1 flows in the same direction as 1.

Answer 2

Electromagnetic waves are generated by charges undergoing acceleration, not by charges moving with uniform speed. All other properties are characteristics of electromagnetic waves:
- Energy densities of electric and magnetic fields are equal.
- Their speed is $\frac{1}{\sqrt{\mu_0 \epsilon_0}}$.
- They are transverse waves.