The field configuration in two different views of waves propagation in a rectangular waveguide, as shown. the given figure represents the mode

1.  TM11

2.  TE11

3.  TE21

4.  TE10

View Answer  
4
Correct Answer :

TM11


Explanation :
No Explanation available for this question

A parallel-plate guide operates in the T.E.M mode only over the frequency range 0 < f

1.  3.4 cm

2.  6.8 cm

3.  4.3 cm

4.  8.6 cm

View Answer  
4
Correct Answer :

3.4 cm


Explanation :
No Explanation available for this question

In a rectangular waveguide there . one half-wave variation of electric field across the narrow dimension and two half-wave variations of electric field across the wider dimension. What is the dominant mode,

1.  TM12

2.  TE12

3.  TE21

4.  TM21

View Answer  
4
Correct Answer :

TM12


Explanation :
No Explanation available for this question

'Which one of the following gatemen. . true for electro-magnetic wave propagation through a rectangular waveguide of cross section 2ax a

1.  Critical wavelength for TE10 mode is the same as that for TE. mode

2.  Critical wavelength for TE10 mode is half that for TM10 mode

3.  Critical wavelength for TE10 mode is the same as that for TM01, mode

4.  Critical wave length for TE10 mode is double that for TE01 mode

View Answer  
4
Correct Answer :

Critical wavelength for TE10 mode is the same as that for TM01, mode


Explanation :
No Explanation available for this question

The cut-off frequency is

1.  4.189 GHz

2.  5.973GHz

3.  8.438 GHz

4.  7.946 GHz

View Answer  
4
Correct Answer :

5.973GHz


Explanation :
No Explanation available for this question

The intrinsic impedance is

1.  35.72Ω

2.  3978Ω

3.  1989Ω

4.  71.44Ω

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4
Correct Answer :

3978Ω


Explanation :
No Explanation available for this question

The cross-section of a wave guide is shown in the figure. It has dielectric discontinuity. If the guide operate at 8 GHz in the dominant mode, then standing wave ratio is

1.  -3.911

2.  2.468

3.  1.564

4.  4.389

View Answer  
4
Correct Answer :

2.468


Explanation :
No Explanation available for this question

For TM waves in a parallel plate waveguide, the minimum attenuation arising from imperfect conductors would occur at a frequency of (fc is the cut-off frequency

1.  3fc

2.  √3fc

3.  2fc

4.  √2fc

View Answer  
4
Correct Answer :

√2fc


Explanation :
No Explanation available for this question

If a⁢b⁢c, then the dominant mode is

1.  TE011

2.  TM010

3.  TE101

4.  TM101

View Answer  
4
Correct Answer :

TE011


Explanation :
No Explanation available for this question

If a>b>c, then the dominant mode is

1.  TE011

2.  TM010

3.  TE101

4.  TM101

View Answer  
4
Correct Answer :

TM010


Explanation :
No Explanation available for this question
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