# For the given graph, the incidence matrix would be

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Which of the following graphs has the same fundamental loop matrix

1.  1, 2

2.  2, 3

3.  1, 3, 4

4.  2, 3, 4

4

1, 2

Explanation :
No Explanation available for this question

# In the circuit of figure the switch’s’ is closed at t= 0 with iL=(0) and vc= (0). In the steady state Vc equal to

1.  200 V

2.  100 V

3.  zero

4.  -100 V

4

100 V

Explanation :
No Explanation available for this question

# Match list I with List II and select the correct answer using the codes given below to indicate the topological variables for the circuit given in figure to write loop equations. List I List II a. Number of branches 1. 3 b. Number of independent loops 2. 2 c. Order of B matrix 3. 3X 5 d. Number of twigs 4. 4 X 7 5. 5

1.  a-1 b-2 c- d-5

2.  a-5 b-1 c-3 d-2

3.  a-5 b-1 c-4 d-2

4.  a-2 b-1 c-4 d-5

4

a-5 b-1 c-3 d-2

Explanation :
No Explanation available for this question

# In the graph shown in figure below, e possible tree is formed by 4, 5, 6, 7. Then one possible fundamental cut set is

1.  1, 2, 3, 8

2.  1, 2, 5, 6

3.  1, 5, 6, 8

4.  1, 2, 3, 7, 8

4

1, 2, 3, 7, 8

Explanation :
No Explanation available for this question

# A semiconductor material is doped with Donar type impurities with 1015 atoms/cm3.If the intrinstic carrier concentration is 1010 per cm3, then the concentration of holes in the doped semiconductors in equilibrium is

1.  105

2.  1015

3.  1010

4.  0

4

105

Explanation :
No Explanation available for this question

# When all the resistances in the circuit are at one ohm each, the equivalent resistance across the point A and B will be.

1.  1Ω

2.  0.5Ω

3.  2Ω

4.  1.5Ω

4

0.5Ω

Explanation :
No Explanation available for this question

# Conductors, semiconductors and insulators can be easily classified on the basic of

1.  Melting point

2.  Band gap energy

3.  Relative permittivity

4.  conductivity

4

Band gap energy

Explanation :
No Explanation available for this question

# In the graph shown in figure below, for the tree with branches a, b, c, d, e, f the fundamental loops would include

1.  cca, bdea, abf

2.  cdb, bdea, bfa

3.  cdb, def, bfa

4

cdb, def, bfa

Explanation :
No Explanation available for this question

1.  Exponential

2.  Parabolic

3.  Logarithmic

4.  ndependent

4