MCQ
In electromagnetic wave, according to Maxwell, changing electric field gives.
  • A
    Stationary magnetic field
  • B
    Conduction current
  • C
    Eddy current
  • Displacement current

Answer

Correct option: D.
Displacement current

By Maxwell
$I _{ d }=\frac{ EdE }{ dt }$
$d E$ is electric field
$I_d$ is displacement current per unit area.
Hence changing electric field gives displacement current.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A photon collides with a stationary hydrogen atom in ground state inelastically. Energy of the colliding photon is $10.2 \ eV$. After a time interval of the order of micro second another photon collides with same hydrogen atom inelastically with an energy of $15 \ eV$. What will be observed by the detector
Two parallel slits 0.6 mm apart are illuminated by light source of wavelength 6000 Å. The distance between two consecutive dark fringes on a screen 1 m away from the slits is
Each quarter of a vessel of depth $H$ is filled with liquids of the refractive indices $n_1, n_2, n_3$ and $n_4$ from the bottom respectively. The apparent depth of the vessel when looked normally is
The potentials of the two plates of capacitor are $+10\,V$ and $-10\, V$. The charge on one of the plates is $40 \,C$. The capacitance of the capacitor is........$F$
The equivalent resistance between ends $A$ and $B$ is
A charge (-q) and another charge (+Q) are kept at two points A and B respectively. Keeping the charge (+Q) fixed at B, the charge (-q) at A is moved to another point C such that ABC forms an equilateral triangle of side l. The net work done in moving the charge (-q) is
In a wire of circular cross-section with radius $r$, free electrons travel with a drift velocity $V$ when a current $I$ flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is $2V$
In a $L-R$ decay circuit, the initial current at $t = 0$ is $I$. The total charge that has flown through the resistor till the energy in the inductor has reduced to one-fourth its initial value, is
Which one is not the correct statement
Find $V_{AB}$....$V$