Network Theory And Analysis MCQ Questions & Answers | ECE

A. depends on the choice of tree

B. is less than 8

C. is exactly 8

D. is exactly 9

A. 1/9s

B. 1/4s

C. 4s

D. 9s

A. Low voltage

B. Excessive current

C. High inductance

D. Excessive voltage

A. A tree contains all the vertices of its graph

B. A circuit contains all the vertices of its graph

C. The number of f-circuits is the same as the number of chords

D. There are at least two edges in a circuit

A. 2.4 Ω

B. $$\frac{8}{3}$$ Ω

C. 4 Ω

D. 6 Ω

A. node

B. terminus

C. combination

D. anode

A. (8 + 16j) Ω

B. (2 + j0) Ω

C. (15 + 64j) Ω

D. (8 + 0j) Ω

A. The flow of current in the electric circuit involves discontinuous expenditure of energy

B. The flow of current in the electric circuit requires energy for creating the current but not to maintain it

C. In the magnetic circuit energy is needed continuously to maintain the flux

D. In the magnetic circuit energy is needed for creating the flux initially but not maintain it

A. $$\sqrt {{R^2} + X_L^2 + X_C^2} $$

B. $$\sqrt {{R^2} + X_L^2 - X_C^2} $$

C. $$\sqrt {{R^2} + {{\left( {{X_L} + {X_C}} \right)}^2}} $$

D. $$\sqrt {{R^2} + {{\left( {{X_L} - {X_C}} \right)}^2}} $$

A. \[\left[ {\begin{array}{*{20}{c}} {3.5 + j2}&{20.5} \\ {20.5}&{3.5 - j2} \end{array}} \right]\]

B. \[\left[ {\begin{array}{*{20}{c}} {3.5 + j2}&{30.5} \\ {0.5}&{3.5 - j2} \end{array}} \right]\]

C. \[\left[ {\begin{array}{*{20}{c}} {10}&{2 + j0} \\ {2 + j0}&{10} \end{array}} \right]\]

D. \[\left[ {\begin{array}{*{20}{c}} {7 + j4}&{0.5} \\ {30.5}&{7 - j4} \end{array}} \right]\]