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MCQs

Total Questions : 99 | Page 4 of 10 pages
Question 31. The superposition theorem is applicable to
  1.    Linear, nonlinear and time variant responses
  2.    Linear and nonlinear resistors only
  3.    Linear responses only
  4.    None of the above
 Discuss Question
Answer: Option C. -> Linear responses only
Question 32. Kirchhoff s current law states that
  1.    Net current flow at the junction is positive
  2.    Hebraic sum of the currents meeting at the junction is zero
  3.    No current can leave the junction without some current entering it
  4.    Total sum of currents meeting at the junction is zero
 Discuss Question
Answer: Option B. -> Hebraic sum of the currents meeting at the junction is zero
Question 33. In a series parallel circuit, any two resistances in the same current path must be in
  1.    Series with each other
  2.    Parallel with each other
  3.    Series with the voltage source
  4.    Parallel with the voltage source
 Discuss Question
Answer: Option A. -> Series with each other
Question 34. This mention statement is associated with “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”.
  1.    Thevenin’s theorem
  2.    Norton’s theorem
  3.    Superposition theorem
  4.    None of the above
 Discuss Question
Answer: Option C. -> Superposition theorem
Question 35. Kirchhoff’s current law is applicable to only
  1.    Junction in a network
  2.    Closed loops in a network
  3.    Electric circuits
  4.    Electronic circuits
 Discuss Question
Answer: Option A. -> Junction in a network
Question 36. A passive network is one which contains
  1.    Only variable resistances
  2.    Only some sources of e.m.f. in it
  3.    Only two sources of e.m.f. in it
  4.    No source of e.m.f. in it
 Discuss Question
Answer: Option D. -> No source of e.m.f. in it
Question 37. In Thevenin’s theorem, to find Z
  1.    All independent current sources are short circuited and independent voltage sources are open circuited
  2.    All independent voltage sources are open circuited and all independent current sources are short circuited
  3.    All independent voltage and current sources are short circuited
  4.    All independent voltage sources are short circuited and all independent current sources are open circuited
 Discuss Question
Answer: Option D. -> All independent voltage sources are short circuited and all independent current sources are open circuited
Question 38. If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be
  1.    A voltage source
  2.    A current source
  3.    Both of above
  4.    None of the above
 Discuss Question
Answer: Option A. -> A voltage source
Question 39. If resistance across LM in Fig. 2.30 is 15 ohms, the value of R is
  1.    10 Q
  2.    20 Q
  3.    30 Q
  4.    40 Q
 Discuss Question
Answer: Option C. -> 30 Q
Question 40. This mention statement is associated with “Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual currents and source resistance is the parallel combination of individual source resistances”.
  1.    Thevenin’s theorem
  2.    Millman’s theorem
  3.    Maximum power transfer theorem
  4.    None of the above
 Discuss Question
Answer: Option B. -> Millman’s theorem

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