1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The wavelength of a wave with propagation constant (0.1π+j0.2π)m-1 is

1.  2m/√0.05

2.  10m

3.  20m

4.  30m

4

2m/√0.05

Explanation :
No Explanation available for this question

# The depth of penetration of wave in a lossy dielectric increases with increasing

1.  conductivity

2.  permeability

3.  wavelength

4.  permittivity

4

wavelength

Explanation :
No Explanation available for this question

# The current i4, in the circuit of the figure is equal t

1.  12A

2.  -12A

3.  4A

4.  none of these

4

-12A

Explanation :
No Explanation available for this question

# The vector H in the far field of an antenna satisfies

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The voltage V in the figure is always equal to

1.  9V

2.  5V

3.  1v

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# The  radiation  resistance  of  a  circular  loop  of  one  turn  is  0.01Ω. The  radiation  resistance of five turns of such a loop will be

1.  0.002Ω

2.  0.01Ω

3.  0.05Ω

4.  0.25Ω

4

0.25Ω

Explanation :
No Explanation available for this question

# An antenna in free space receives 2μW of power when the incident electric field is 20 mV/m rms. The effective aperture of the antenna is

1.  0.005 m2

2.  0.05 m2

3.  1.885 m2

4.  3.77 m2

4

3.77 m2

Explanation :
No Explanation available for this question

# The function f(t) has the Fourier Transform g(ω). The Fourier Transform

1.  f(ω)/2π

2.  f(-ω)/2π

3.  2π f(-ω)

4.  None of these

4

2π f(-ω)

Explanation :
No Explanation available for this question

# The maximum usable frequency of an ionospheric layer at 600 incidence and with 8 mHz critical frequency is

1.  16 MHz

2.  16/√3 MHz

3.  8 MHz

4.  about 6.93 MHz

4