An omnidirectional antenna is

1.  Half-wave dipole

2.   Discone

3.  Marconi

4.  All the above

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4
Correct Answer :

All the above


Explanation :
No Explanation available for this question

The steady state output voltage corresponding to the input voltage is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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An antenna gain of four times in voltage is

1.  2/4 db

2.  4 db

3.  8 db

4.   12 db

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4
Correct Answer :

12 db


Explanation :
No Explanation available for this question

Thevenin’s equivalent resistance Rth for the network shown in the given figure is known to be 2. The value of R in ohms is

1.  1

2.  2

3.  3

4.  4

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4
Correct Answer :

1


Explanation :
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Broadcasting antennas are generally

1.  Omnidirectional type

2.  Vertical type

3.  Horizontal type

4.  None of the above

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Correct Answer :

Vertical type


Explanation :
No Explanation available for this question

The directive gain of an antenna is given by

1.  

2.  

3.  

4.  

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4
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Explanation :
No Explanation available for this question

The Y parameters of a four terminals block are A single element of 1 ohm is connected across as shown in the given figure. The new Y parameters will be

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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The numerical value of directive gain may lie between

1.  1 and +1

2.  0 and 1

3.  0 and ∞

4.  1 and ∞

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4
Correct Answer :

0 and ∞


Explanation :
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Directivity gain depends on

1.  The distribution of radiated power in space

2.  Solid angle of the radiated field pattern

3.  Both (a) and (b) above

4.  None of the above

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4
Correct Answer :

The distribution of radiated power in space


Explanation :
No Explanation available for this question

For lattice type attenuator shown in the given figure, the characteristic impedance R0 is

1.  R1+R2/2

2.  2R1+R2/ R1+R2

3.  

4.  R1+ R2/2

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4
Correct Answer :


Explanation :
No Explanation available for this question
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