A  transmission  line  is  feeding 1 Watt of power  to a horn antenna having a gain of 10 dB.The  antenna  is matched  to  the  transmission  line.  The  total  power  radiated  by  the  horn antenna into the free-space is

1.  10 Watts

2.  1 Watt

3.  0.1 Watt

4.  0.01 Watt

View Answer  
4
Correct Answer :

10 Watts


Explanation :
No Explanation available for this question

For the function of a complex variable W = ln Z (where, W = u + jv and Z = x + jy), the u = constant lines get mapped in Z-plane as

1.  set of radial straight lines

2.  set of concentric circles

3.  set of confocal hyperbolas

4.  set of confocal ellipses

View Answer  
4
Correct Answer :

set of concentric circles


Explanation :
No Explanation available for this question

As x is increased from -∞ to ∞, the function f(x) = ex/(1 + ex)

1.  monotonically increases

2.  monotonically decreases

3.  increases to a maximum value and then decreases

4.  decreases to a minimum value and then increases

View Answer  
4
Correct Answer :

monotonically increases


Explanation :
No Explanation available for this question

The  first  and  the  last  critical  frequencies  (singularities)  of  a  driving  point  impedan function  of  a  passive  network  having  two  kinds  of  elements,  are  a  pole  and  a  z respectively. The above property will be satisfied by

1.  RL network only

2.  RC network only

3.  LC network only

4.   RC as well as RL networks

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4
Correct Answer :

RC network only


Explanation :
No Explanation available for this question

Consider two transfer functions G1(s) = 1/(s2 + as + b) and G2(s) = s/(s2 + as + b) The 3-dB bandwidths of their frequency responses are, respectively

1.  √(a2 - 4b), √(a2 + 4b)

2.  √(a2 + 4b), √(a2 - 4b)

3.  √(a2 - 4b), √(a2 - 4b)

4.  √(a2 + 4b), √(a2 + 4b)

View Answer  
4
Correct Answer :

√(a2 + 4b), √(a2 - 4b)


Explanation :
No Explanation available for this question

A p+ n junction has built-in potential of 0.8 V. The depletion layer width at a reverse bias of 1.2 V is 2 μm. For a reverse bias of 7.2 V, the depletion layer width will be

1.  4 μm

2.  4.9 μm

3.  8 μm

4.  12 μm

View Answer  
4
Correct Answer :

4 μm


Explanation :
No Explanation available for this question

Group  I  lists  four  types of p-n  junction diodes. Match each device  in Group  I with one of the options  in Group  II  to  indicate  the bias condition of  that device  in  its normal mode of operation

1.  P-1, Q-2, R-1, S-2

2.  P-2, Q-1, R-1, S-2

3.  P-2, Q-2, R-1, S-1

4.  P-2, Q-1, R-2, S-2

View Answer  
4
Correct Answer :

P-2, Q-1, R-1, S-2


Explanation :
No Explanation available for this question

The DC  current gain  ( β) of a BJT  is 50. Assuming  that  the emitter  injection efficiency  is 0.995, the base transport factor is

1.  0.980

2.  0.985

3.  0.990

4.  0.995

View Answer  
4
Correct Answer :

0.985


Explanation :
No Explanation available for this question

A new Binary Coded Pentary  (BCP) number system  is proposed  in which every digit of abase-5  number  is  represented  by  tis  corresponding  3-bit  binary  code. For  example,  the base-5  number  is  represented  by  tis  corresponding  3-bit  binary  code. For  example,  the base-5 number 24 will be represented by its BCP code 010100. In this numbering system, the BCP code 100010011001 corresponds to the following number in base-5 system

1.  423

2.  1324

3.  2201

4.  4231

View Answer  
4
Correct Answer :

4231


Explanation :
No Explanation available for this question

. Following is the segment of a 8085 assembly language program LXI SP, EFFFH CALL 3000 H             :             : 3000 H : LXI H, 3CF4 H PUSH PSW SPHL POP PSW RET On completion of RET execution, the contents of SP is

1.  3CFO H

2.  3CF8 H

3.  EFFD H

4.  EFFF H

View Answer  
4
Correct Answer :

3CF8 H


Explanation :
No Explanation available for this question
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