Class 12PhysicsElectromagnetic wavesMaxwell's equations , Concept of displacement current and Hertz experiment
MediumWhat is the effect of displacement current?
(N/A) The displacement current allows the laws of electric and magnetic fields to be represented more symmetrically.
Faraday's law of electromagnetic induction states that a time-varying magnetic field produces an electric field.
Maxwell's modification to Ampere's law (the Ampere-Maxwell law) states that a time-varying electric field (represented by displacement current) produces a magnetic field.
Thus,electric and magnetic fields changing with time produce each other.
This symmetry in the laws of electromagnetism leads to the prediction of the existence of electromagnetic waves,which propagate through space as self-sustaining oscillations of electric and magnetic fields.
Faraday's law of electromagnetic induction states that a time-varying magnetic field produces an electric field.
Maxwell's modification to Ampere's law (the Ampere-Maxwell law) states that a time-varying electric field (represented by displacement current) produces a magnetic field.
Thus,electric and magnetic fields changing with time produce each other.
This symmetry in the laws of electromagnetism leads to the prediction of the existence of electromagnetic waves,which propagate through space as self-sustaining oscillations of electric and magnetic fields.
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Similar Questions
Consider a parallel plate capacitor which is maintained at a potential of $200 \, V$. The separation distance between the plates of the capacitor and the area of the plates are $1 \, mm$ and $20 \, cm^2$, respectively. Calculate the displacement current in $1 \, \mu s$. (in $ \, mA$)
DifficultTS EAMCET 2020
View SolutionMaxwell's equations are derived from the laws of .......
Easy
View Solution$A$ parallel plate capacitor of area $A = 16 \ cm^2$ and separation between the plates $10 \ cm$ is charged by a $DC$ current. Consider a hypothetical plane surface of area $A_0 = 3.2 \ cm^2$ inside the capacitor and parallel to the plates. At an instant,the current through the circuit is $6 \ A$. At the same instant,the displacement current through $A_0$ is . . . . . . $mA$.
Which of the following options represents the Ampere-Maxwell Law?
The voltage between the plates of a parallel plate capacitor of capacity $1 \ \mu F$ is changing at the rate of $4 \ V/s$. The displacement current in the capacitor is: (in $\mu A$)
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