Class 12 Physics simulations · Electromagnetic Waves

Displacement current between plates

Charge and discharge a capacitor, and connect a changing electric field with current continuity.

Open the simulation

What to notice

No charge crosses the vacuum gap. A changing electric field supplies the displacement-current term.

Key relation

Id = ε₀A dE/dt = Iwire

Try this

Pause at maximum field: the instantaneous current should be zero.

What you can change

• Peak charging current: 1 to 10 nA
• Charge-cycle frequency: 0.5 to 2 Hz
• Plate area: 0.01 to 0.08 m²

More in Electromagnetic Waves

• Radiation from a dipole antenna
• Light entering a medium (3D fields)
• Electromagnetic wave
• Photon energy across the spectrum
• Explore the EM spectrum

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