Electrical Network Theorems Questions and Answers - Set 03 - ObjectiveBooks

# Practice Test: Question Set - 03

1. While calculating Rth in Thevenin’s theorem and Norton equivalent
(A) All independent sources are made dead
(B) Only current sources are made dead
(C) Only voltage sources are made dead
(D) All voltage and current sources are made dead

2. To determine the polarity of the voltage drop across a resistor, it is necessary to know
(A) Value of current through the resistor
(B) Direction of current through the resistor
(C) Value of resistor
(D) E.m.f. in the circuit

3. “In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.
The above statement is associated with
(A) Thevenin’s theorem
(B) Norton’s theorem
(C) Superposition theorem
(D) None of the above

4. A network which contains one or more than one source of e.m.f. is known as
(A) Linear network
(B) Nonlinear network
(C) Passive network
(D) Active network

5. Kirchhoff’s current law is applicable to only
(A) Junction in a network
(B) Closed loops in a network
(C) Electric circuits
(D) Electronic circuits

6. A passive network is one which contains
(A) Only variable resistances
(B) Only some sources of e.m.f. in it
(C) Only two sources of e.m.f. in it
(D) No source of e.m.f. in it

7. Kirchhoff’s voltage law is related to
(A) Junction currents
(B) Battery e.m.f.
(C) IR drops
(D) Both (B) and (C)

8. A capacitor is generally a
(A) Bilateral and active component
(B) Active, passive, linear and nonlinear component
(C) Linear and bilateral component
(D) Nonlinear and active component

9. The circuit has resistors, capacitors and semiconductor diodes. The circuit will be known as
(A) Nonlinear circuit
(B) Linear circuit
(C) Bilateral circuit
(D) None of the above

10. Which of the following is a bilateral element?
(A) Constant current source
(B) Constant voltage source
(C) Capacitance
(D) None of the above

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