# If an amplifier with gain of -1000 and feedback of b=-0.1 had a gain change of 20% due to temperature, then change in gain of the feedback amplifier would be

1.  10%

2.  5%

3.  0.2%

4.  0.01%.

4

0.2\%

Explanation :
No Explanation available for this question

# A constant current signal across parallel RLC circuit gives an output of 1.4volts at the signal frequency of 3.89 KHz and 4.1 KHz.at frequency of 4KHz, output voltage will be

1.  1 volt

2.  2 volts

3.  1.4 volts

4.  2.8 volts

4

2 volts

Explanation :
No Explanation available for this question

# In the circuit shown in the given figure, the type of feedback used is

1.  Voltage series feedback

2.  Voltage shunt feedback

3.  Current series feedback

4.  Current shunt feedback.

4

Voltage shunt feedback

Explanation :
No Explanation available for this question

# An amplifier has an open loop gain of 100KΩ input impedance of 1KΩ, and an output impedance of 100Ω. If a feedback network has a feedback factor of 0.99 is connected in a voltage series feedback mode then new input and output impedance are

1.  10Ω and 1Ω

2.  10Ω and 10KΩ

3.  100kΩ and 1Ω

4.  100KΩ and 10KΩ.

4

100kΩ and 1Ω

Explanation :
No Explanation available for this question

# From the graphs drawn below, which of the following is non-planer

1.  Fig.(1) and (2)

2.  Fig (2) only

3.  Fig.(4) only

4.  Fig. (3) and Fig. (4)

4

Fig.(4) only

Explanation :
No Explanation available for this question

# If the number of branches in a network is B, the number of nodes is N and the number of dependent Loop is L, then the number of independent node equation will be

1.  N + L – 1

2.  B - 11

3.  B – N

4.  N – 1

4

N – 1

Explanation :
No Explanation available for this question

# In graph shown in the figure, for the tree with Branch b, and f , the fundamental loop wound  include

1.  abc, def, bdea

2.  cea, bdea, abc

4.  abde, def, cdb

4

Explanation :
No Explanation available for this question

# Consider the graph and tree (dotted) of the given figure. The fundamental loops include the set of  lines .

1.  (1,5, 3), (5,4, 2)and(3, 4, 6)

2.  (1, 2, 4, 3), (1, 2, 6), (3, 4, 6) and (1, 5, 4, 6)

3.  (1, 5, 3), (5, 4, 2), (3, 4, 6) and (2, 4, 3,1)

4.  (1,2, 3) and (3, 4, 6)

4

(1,2, 3) and (3, 4, 6)

Explanation :
No Explanation available for this question

# A connected network of N > 2 nodes has at most one branch directly connecting any pair of nodes. The graph of the network

1.  must have at least N branches for one or more closed paths to exist

2.  can have an unlimited number of branches

3.  can only have at most N branches

4.  can have a minimum number of branches not decided by N

4

can have a minimum number of branches not decided by N

Explanation :
No Explanation available for this question

# The number of independent loops for a network with n nodes and b branch is

1.  n-l

2.  b-n

3.  b-n+1

4.  independent of the number of nodes

4