Network Theorems

1. "Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual source currents and source resistance is the parallel combination of individual source resistances". The above statement is associated with

  1. Thevenin's theorem
  2. Millman's theorem
  3. Maximum power transfer theorem
  4. None of the above

Correct answer: (B)
Millman's theorem

2. "In any linear bilateral network, if a source of e.m.f. E in any branch produces a current I in any other branch, then same e.m.f. acting in the second branch would produce the same current / in the first branch". The above statement is associated with

  1. compensation theorem
  2. superposition theorem
  3. reciprocity theorem
  4. none of the above

Correct answer: (C)
reciprocity theorem

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 fictitious 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 in 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

  1. Thevenin's theorem
  2. Norton's theorem
  3. Superposition theorem
  4. None of the above

Correct answer: (C)
Superposition theorem

4. "Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with

  1. Millman's theorem
  2. Thevenin's theorem
  3. Superposition theorem
  4. Maximum power transfer theorem

Correct answer: (D)
Maximum power transfer theorem

5. A capacitor is generally a

  1. bilateral and active component
  2. active, passive, linear and nonlinear component
  3. linear and bilateral component
  4. non-linear and active component

Correct answer: (C)
linear and bilateral component

6. A closed path made by several branches of the network is known as

  1. branch
  2. loop
  3. circuit
  4. junction

Correct answer: (B)
loop

7. A delta circuit has each element of value R/2. The equivalent elements of star circuit with be

  1. RIG
  2. R/3
  3. 2R
  4. 3R

Correct answer: (A)
RIG

8. A linear resistor having 0 < R < °o is a

  1. current controlled resistor
  2. voltage controlled resistor
  3. both current controlled and voltage controlled resistor
  4. none of the above

Correct answer: (C)
both current controlled and voltage controlled resistor

9. A network which contains one or more than one source of e.m.f. is known as

  1. linear network
  2. non-linear network
  3. passive network
  4. active network

Correct answer: (C)
passive network

10. A non-linear network does not satisfy

  1. superposition condition
  2. homogeneity condition
  3. both homogeneity as well as superposition condition
  4. homogeneity, superposition and associative condition

Correct answer: (C)
both homogeneity as well as superposition condition

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