Network Theory And Analysis MCQ

Test your knowledge with important Network Theory And Analysis MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Network Theory And Analysis MCQs at Bissoy

• Superposition theorem can be applied only to circuits having
  ক

  Resistive elements

  খ

  Passive elements

  গ

  Nonlinear elements

  ঘ

  Linear bilateral elements
• A linear resistor having 0
  ক

  Current controlled resistor

  খ

  Voltage controlled resistor

  গ

  Both current controlled and voltage controlled resistor

  ঘ

  None of the above
• The circuit has resistors, capacitors and semiconductor diodes. The circuit will be known as
  ক

  Nonlinear circuit

  খ

  Linear circuit

  গ

  Bilateral circuit

  ঘ

  None of the above
• For maximum transfer of power, internal resistance of the source should be
  ক

  Equal to load resistance

  খ

  Less than the load resistance

  গ

  Greater than the load resistance

  ঘ

  None of the above
• For high efficiency of transfer of power, internal resistance of the source should be
  ক

  Equal to the load resistance

  খ

  Less than the load resistance

  গ

  More than the load resistance

  ঘ

  None of the above
• Which of the following is the passive element?
  ক

  Capacitance

  খ

  Ideal current source

  গ

  Ideal voltage source

  ঘ

  All of the above
• “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”.<br>The above statement is associated with
  ক

  Thevenin’s theorem

  খ

  Norton’s theorem

  গ

  Superposition theorem

  ঘ

  None of the above
• “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
  ক

  Compensation theorem

  খ

  Superposition theorem

  গ

  Reciprocity theorem

  ঘ

  None of the above
• “Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen terminals of the load”. The above statement is associated with
  ক

  Millman’s theorem

  খ

  Thevenin’s theorem

  গ

  Superposition theorem

  ঘ

  Maximum power transfer theorem
• A delta circuit has each element of value $$\frac{{\text{R}}}{2}.$$ The equivalent elements of star circuit with be
  ক

  $$\frac{{\text{R}}}{6}$$

  খ

  $$\frac{{\text{R}}}{3}$$

  গ

  2R

  ঘ

  3R
• This mention statement is associated with <br>“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”.
  ক

  Thevenin’s theorem

  খ

  Millman’s theorem

  গ

  Maximum power transfer theorem

  ঘ

  None of the above
• If resistance across LM in Fig. 2.30 is 15 ohms, the value of R is
  ক

  10 Q

  খ

  20 Q

  গ

  30 Q

  ঘ

  40 Q
• In Thevenin’s theorem, to find Z
  ক

  All independent current sources are short circuited and independent voltage sources are open circuited

  খ

  All independent voltage sources are open circuited and all independent current sources are short circuited

  গ

  All independent voltage and current sources are short circuited

  ঘ

  All independent voltage sources are short circuited and all independent current sources are open circuited
• If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be
  ক

  A voltage source

  খ

  A current source

  গ

  Both of above

  ঘ

  None of the above
• A passive network is one which contains
  ক

  Only variable resistances

  খ

  Only some sources of e.m.f. in it

  গ

  Only two sources of e.m.f. in it

  ঘ

  No source of e.m.f. in it
• Kirchhoff’s current law is applicable to only
  ক

  Junction in a network

  খ

  Closed loops in a network

  গ

  Electric circuits

  ঘ

  Electronic circuits
• This mention statement is associated with <br>“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”.
  ক

  Thevenin’s theorem

  খ

  Norton’s theorem

  গ

  Superposition theorem

  ঘ

  None of the above
• In a series parallel circuit, any two resistances in the same current path must be in
  ক

  Series with each other

  খ

  Parallel with each other

  গ

  Series with the voltage source

  ঘ

  Parallel with the voltage source
• Kirchhoff s current law states that
  ক

  Net current flow at the junction is positive

  খ

  Algebraic sum of the currents meeting at the junction is zero

  গ

  No current can leave the junction without some current entering it

  ঘ

  Total sum of currents meeting at the junction is zero
• The superposition theorem is applicable to
  ক

  Linear, nonlinear and time variant responses

  খ

  Linear and nonlinear resistors only

  গ

  Linear responses only

  ঘ

  None of the above
• Efficiency of power transfer when maximum transfer of power c xerosis
  ক

  100%

  খ

  80%

  গ

  75%

  ঘ

  50%
• Which of the following is non-linear circuit parameter?
  ক

  Inductance

  খ

  Condenser

  গ

  Wire wound resistor

  ঘ

  Transistor
• A nonlinear network does not satisfy
  ক

  Superposition condition

  খ

  Homogeneity condition

  গ

  Both homogeneity as well as superposition condition

  ঘ

  Homogeneity, superposition and associative condition
• While calculating R_th in Thevenin’s theorem and Norton equivalent
  ক

  All independent sources are made dead

  খ

  Only current sources are made dead

  গ

  Only voltage sources are made dead

  ঘ

  All voltage and current sources are made dead
• Millman’s theorem yields
  ক

  Equivalent resistance

  খ

  Equivalent impedance

  গ

  Equivalent voltage source

  ঘ

  Equivalent voltage or current source
• A star circuit has element of resistance $$\frac{{\text{R}}}{2}.$$ The equivalent delta elements will be
  ক

  $$\frac{{\text{R}}}{6}$$

  খ

  $$\frac{3}{2}{\text{R}}$$

  গ

  2R

  ঘ

  4R
• Kirchhoff’s law is applicable to
  ক

  Passive networks only

  খ

  A.C. circuits only

  গ

  D.circuits only

  ঘ

  Both A.C. as well D.C. circuits
• An ideal voltage source has
  ক

  Zero internal resistance

  খ

  Open circuit voltage equal to the voltage on full load

  গ

  Terminal voltage in proportion to current

  ঘ

  Terminal voltage in proportion to load
• Thevenin resistance R_th is found
  ক

  By removing voltage sources along with their internal resistances

  খ

  By short circuiting the given two terminals

  গ

  Between any two open terminals

  ঘ

  Between same short terminals as for E_th
• To determine the polarity of the voltage drop across a resistor, it is necessary to know
  ক

  Value of current through the resistor

  খ

  Direction of current through the resistor

  গ

  Value of resistor

  ঘ

  E.m.f. in the circuit