Network Theory And Analysis MCQ

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• Superposition theorem can be applied only to circuits having
  ক

  Resistive elements

  খ

  Passive elements

  গ

  Nonlinear elements

  ঘ

  Linear bilateral elements
• 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
• “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
• 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
• 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
• Millman’s theorem yields
  ক

  Equivalent resistance

  খ

  Equivalent impedance

  গ

  Equivalent voltage source

  ঘ

  Equivalent voltage or current source
• 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
• 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
• The circuit whose properties are same in either direction is known as
  ক

  Unilateral circuit

  খ

  Bilateral circuit

  গ

  Irreversible circuit

  ঘ

  Reversible circuit
• Kirchhoff’s voltage law applies to circuits with
  ক

  Nonlinear elements only

  খ

  Linear elements only

  গ

  Linear, nonlinear, active and passive elements

  ঘ

  Linear, nonlinear, active, passive, time varying as wells as time-invariant elements
• A terminal where three on more branches meet is known as
  ক

  Node

  খ

  Terminus

  গ

  Combination

  ঘ

  Anode
• For a voltage source
  ক

  Terminal voltage is always lower than source e.m.f.

  খ

  Terminal voltage cannot be higher than source e.m.f.

  গ

  The source e.m.f. and terminal voltage are equal

  ঘ

  None of these
• A network which contains one or more than one source of e.m.f. is known as
  ক

  Linear network

  খ

  Nonlinear network

  গ

  Passive network

  ঘ

  Active network
• The resistance LM will be
  ক

  6.66 Q

  খ

  12 Q

  গ

  18 Q

  ঘ

  20 Q
• An ideal voltage source should have
  ক

  Large value of e.m.f.

  খ

  Small value of e.m.f.

  গ

  Zero source resistance

  ঘ

  Infinite source resistance
• A capacitor is generally a
  ক

  Bilateral and active component

  খ

  Active, passive, linear and nonlinear component

  গ

  Linear and bilateral component

  ঘ

  Nonlinear and active component
• Kirchhoff s law is not applicable to circuits with
  ক

  Lumped parameters

  খ

  Passive elements

  গ

  Distributed parameters

  ঘ

  Non-linear resistances
• Which of the following is a bilateral element?
  ক

  Constant current source

  খ

  Constant voltage source

  গ

  Capacitance

  ঘ

  None of the above