A Delta-connected network with its Wye-equivalent is shown in the figure is,the resistance R1,R2 and  R3(in ohms) are respectiverly

1.  1.5,3 and 9

2.  3,9 and 1.5

3.  9,3 and 1.5

4.  3,1.5 and 9

View Answer  
4
Correct Answer :

3,1.5 and 9


Explanation :
No Explanation available for this question

An n-channel JEFT has IDSS=2mA and Vp=-4V.Its transconductance gm(in million)for an applied  gate-to-source voltage VGS of -2V is

1.   0.25  

2.  0.5

3.  0.75

4.  1.0

View Answer  
4
Correct Answer :

0.5


Explanation :
No Explanation available for this question

An npn transistor (with C=0.3 pF) has a unity-gain cutoff frequency fT of 400MHz at a dc bias  current Ic=1mA.The  value of its Cµ (in pF) is approximately (VT=26mV)

1.  15

2.  30

3.  50

4.  96

View Answer  
4
Correct Answer :

96


Explanation :
No Explanation available for this question

An amplifier is assumed to have a single-pole high-frequency transfer function.The rise time of its output response to a step function input is 35 nsec.The upper -3dB frequency (in MHz) for the amplifier to a sinusoidal input is approximately at

1.  4.55

2.  10

3.  20

4.  28.6

View Answer  
4
Correct Answer :

28.6


Explanation :
No Explanation available for this question

A network has 7 nodes and 5 independent loops.The number of branches in the network is

1.  13

2.  12

3.  11

4.  10

View Answer  
4
Correct Answer :

11


Explanation :
No Explanation available for this question

1.  1,1

2.  -1,-1

3.   j,-j

4.  1,-1

View Answer  
4
Correct Answer :

1,-1


Explanation :
No Explanation available for this question

1.  cannot be determined

2.  is zero

3.  is unity

4.  is infinite

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4
Correct Answer :

cannot be determined


Explanation :
No Explanation available for this question

The trigonometric Fourier series of a periodic time function can have only

1.  cosine terms

2.  sine terms

3.  cosine and sine terms

4.  d.c. and cosine terms

View Answer  
4
Correct Answer :

d.c. and cosine terms


Explanation :
No Explanation available for this question

The nodal method of circuit analysis is based on

1.  KVL and Ohm’s law

2.  KCL and Ohm’s law

3.  KCL and KVL

4.  KCL, KVL and Ohm’s law

View Answer  
4
Correct Answer :

KCL and Ohm’s law


Explanation :
No Explanation available for this question

Superposition theorem is NOT applicable to networks containing

1.  nonlinear elements

2.  dependent voltage sources

3.  dependent current sources

4.  transformers

View Answer  
4
Correct Answer :

nonlinear elements


Explanation :
No Explanation available for this question
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