The electric and magnetic fields of an electromagnetic wave are:

1.	In phase and parallel to each other
2.	In opposite phases and perpendicular to each other
3.	In opposite phases and parallel to each other
4.	In phase and perpendicular to each other

The velocity of electromagnetic wave is parallel to:

1. $\overrightarrow{\mathrm{B}}\times \overrightarrow{\mathrm{E}}$

2. $\overrightarrow{E}\times \overrightarrow{B}$

3. $\overrightarrow{\mathrm{E}}$

4. $\overrightarrow{\mathrm{B}}$

In an electric circuit, there is a capacitor of reactance 100 $\mathrm{\Omega }$ connected across the source of 220 V. The rms value of displacement current will be:
1. 2.2 A 

2. 0.22 A 

3. 4.2 A 

4. 2.4 A

An electromagnetic radiation has an energy \(14.4~\text{keV}\). To which region of the electromagnetic spectrum does it belong?

Out of the following options which one can be used to produce a propagating electromagnetic wave?

In an electromagnetic wave in free space, the root mean square value of the electric field is \(E_{\text{rms}} = 6~\text{V/m}\). The peak value of the magnetic field is:
1. \(2.83\times 10^{-8}~\text{T}\)
2. \(0.70\times 10^{-8}~\text{T}\)
3. \(4.23\times 10^{-8}~\text{T}\)
4. \(1.41\times 10^{-8}~\text{T}\)

An EM wave is propagating in a medium with a velocity \(\overrightarrow{{v}}={v} \hat{i}\). The instantaneous oscillating electric field of this EM wave is along the \(+y\) axis. The direction of the oscillating magnetic field of the EM wave will be along:
1. \(-z \text-\)direction
2. \(+z \text-\) direction
3. \(-y \text-\) direction
4.  \(+y \text-\) direction

Displacement current is the same as:

The charge of a parallel plate capacitor is varying as $q=q_0\sin \omega t$. Find the magnitude of displacement current through the capacitor. 
(Plate Area = A, separation of plates = d)

1. $q_0\cos \left(\omega t\right)$

2. $q_0\omega \sin \omega t$

3. $q_0\omega \cos \omega t$

4. $\frac{q_{0}A\omega }{d}\cos \omega t$

In electromagnetic wave the phase difference between electric and magnetic field vectors $\overrightarrow{E}$ $and$ $\overrightarrow{B}$ is:

1. 0

2. $\mathrm{\pi }/2$

3. $\mathrm{\pi }$

4. $\mathrm{\pi }/4$