# Which one following statements DOES NOT pertain to the equation .B=0

1.  There are no sinks and sources for magnetic fields

2.  Magnetic field is perpendicular to the electric field

3.  Single magnetic pole cannot exist

4.  B is solenoida

4

Magnetic field is perpendicular to the electric field

Explanation :
No Explanation available for this question

# The equation of a plane wave may be written as (with usual symbols)

1.

2.

3.

4.

4 Explanation :
No Explanation available for this question

# Which one of the following sets of equations is independence in Maxwell’s equations

1.  The two curl equations

2.  The two divergence equations

3.  Both the curl and divergences auditions

4.  The two equations combined with the continuity equation

4

Both the curl and divergences auditions

Explanation :
No Explanation available for this question

# Which of the following equations represents the Gauss’ law in a homogeneous isotropic medium

1.

2.

3.

4.

4 Explanation :
No Explanation available for this question

# Given that E = time and space dependent electric intensity vector ????= permeability of the medium σ= conductivity of the medium = permittivity of the medium, the electromagnetic wave equation is given by

1.

2.

3.

4.

4 Explanation :
No Explanation available for this question

# Transmission line whose characteristic impedance is a pure resistance

1.  Must be a lossless line.

2.   Must be a distorionless line

3.  May not be a lossless line

4.  May not be a distortionless line

4

May not be a lossless line

Explanation :
No Explanation available for this question

# A transmission line of characteristic impedance Z0 = 50 ohms, phase velocity VP = 2 x 108 m/s, and length l =1 m is terminated by a load Z1 (30-j40) ohms. The input impedance of the line for a frequency of 100 MHz will be

1.  (30+j 40) ohms

2.   (30 –j 40) ohms

3.   (50+j40) ohms

4.  (50-j40) ohms

4

(30 –j 40) ohms

Explanation :
No Explanation available for this question

# A material is described by the following electrical parameters as a frequency of 10 GHz, σ = 106 mho/m, μ= μ0 and σ/σ0 = 10. The material at this frequency is considered to be (σ = 1/36 π x 10-9 F/m)

1.  Good conductor

2.  A good dielectric

3.  Neither a good conductor, nor a good dielectric

4.  A good magnetic material

4

Good conductor

Explanation :
No Explanation available for this question

# For an infinite linear current, four loops are shown in the given figure. The magnetic flux would be the maximum through the loop number

1.  1

2.  2

3.  3

4.  4

4

2

Explanation :
No Explanation available for this question

1.   +1

2.  0

3.  ∞

4.   +j

4