Answer: Exactly equal to I (continuous current through circuit).
- A Exactly equal to I (continuous current through circuit)
- B Zero, as if no current flowed between the capacitor plates
- C I/2, mainly half of the conduction current charging the capacitor
- D 2I, twice the conduction current charging the capacitor
Correct answer: A. Exactly equal to I (continuous current through circuit)
Explanation: Displacement current I<sub>d</sub> = ε_0 dΦ_E/dt. As the capacitor charges, Φ_E increases. Maxwell showed I<sub>d</sub> = I (conduction current in wires), ensuring charge conservation across the capacitor gap.
In an electromagnetic wave, the oscillating electric field (E) and magnetic field (B) are perpendicular to each other and to the direction the wave travels - a purely transverse wave that needs no medium, unlike sound.
Concept context
Maxwell's equations, EM spectrum, properties, and applications of each band.