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MCQs

Total Questions : 99 | Page 7 of 10 pages
Question 61. Kirchhoff’s voltage law is related to
  1.    Junction currents
  2.    Battery e.m.f.
  3.    Both B and C
  4.    IR drops
 Discuss Question
Answer: Option C. -> Both B and C
Question 62. Choose the incorrect statement.
  1.    A branch formed by the parallel connection of any resistor R and a short circuit has the characteristic of a short circuit
  2.    A branch formed by the series connection of any resistor R and a short circuit has the characteristic of resistor R
  3.    A branch formed by the parallel connection of any resistor R and open circuit has the characteristic of an open circuit
  4.    A branch formed by the series connection of any resistor R and an open circuit has the characteristic of an open circuit
 Discuss Question
Answer: Option C. -> A branch formed by the parallel connection of any resistor R and open circuit has the characteristic of an open circuit
Question 63. Kirchhoff’s voltage law applies to circuits with
  1.    Linear, nonlinear, active and passive elements
  2.    Linear elements only
  3.    Linear, nonlinear, active, passive, time varying as wells as time-invariant elements
  4.    Nonlinear elements only
 Discuss Question
Answer: Option C. -> Linear, nonlinear, active, passive, time varying as wells as time-invariant elements
Question 64. A terminal where three on more branches meet is known as
  1.    Node
  2.    Anode
  3.    Terminus
  4.    Combination
 Discuss Question
Answer: Option A. -> Node
Question 65. The circuit whose properties are same in either direction is known as
  1.    Unilateral circuit
  2.    Reversible circuit
  3.    Bilateral circuit
  4.    Irreversible circuit
 Discuss Question
Answer: Option C. -> Bilateral circuit
Question 66. Kirchhoff’s law is applicable to
  1.    Passive networks only
  2.    Both A.C. as well D.C. circuits
  3.    C. circuits only
  4.    C. circuits only
 Discuss Question
Answer: Option B. -> Both A.C. as well D.C. circuits
Question 67. Thevenin resistance Rth is found
  1.    by removing voltage sources along with their internal resistances
  2.    between any two ‘open’ terminals
  3.    by short-circuiting the given two terminals
  4.    between same open terminals as for Etk
 Discuss Question
Answer: Option D. -> between same open terminals as for Etk
Question 68. Millman’s theorem yields
  1.    Equivalent impedance
  2.    Equivalent voltage or current source
  3.    Equivalent voltage source
  4.    Equivalent resistance
 Discuss Question
Answer: Option B. -> Equivalent voltage or current source
Question 69. A star circuit has element of resistance R/2. The equivalent delta elements will be
  1.    3/2R
  2.    R/6
  3.    4R
  4.    RIG
 Discuss Question
Answer: Option A. -> 3/2R
Question 70. To determine the polarity of the voltage drop across a resistor, it is necessary to know
  1.    Direction of current through the resistor
  2.    E.m.f. in the circuit
  3.    Value of current through the resistor
  4.    Value of resistor
 Discuss Question
Answer: Option A. -> Direction of current through the resistor

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