Q.1
“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
  • Compensation theorem
  • Superposition theorem
  • Reciprocity theorem
  • None of the above
Q.2
A delta circuit has each element of value R/The equivalent elements of star circuit with be
  • RIG
  • R/3
  • 2R
  • 3R
Q.3
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”.
  • Thevenin’s theorem
  • Millman’s theorem
  • Maximum power transfer theorem
  • None of the above
Q.4
If resistance across LM in Fig. 2.isohms, the value of R is
  • 10 Q
  • 20 Q
  • 30 Q
  • 40 Q
Q.5
In Thevenin’s theorem, to find Z
  • All independent current sources are short circuited and independent voltage sources are open circuited
  • All independent voltage sources are open circuited and all independent current sources are short circuited
  • All independent voltage and current sources are short circuited
  • All independent voltage sources are short circuited and all independent current sources are open circuited
Q.6
If the energy is supplied from a source, whose resistance is 1 ohm, to a load ofohms the source will be
  • A voltage source
  • A current source
  • Both of above
  • None of the above
Q.7
A passive network is one which contains
  • Only variable resistances
  • Only some sources of e.m.f. in it
  • Only two sources of e.m.f. in it
  • No source of e.m.f. in it
Q.8
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”.
  • Thevenin’s theorem
  • Norton’s theorem
  • Superposition theorem
  • None of the above
Q.9
A nonlinear network does not satisfy
  • Superposition condition
  • Homogeneity condition
  • Both homogeneity as well as superposition condition
  • Homogeneity, superposition and associative condition
Q.10
Which of the following is non-linear circuit parameter?
  • Inductance
  • Condenser
  • Wire wound resistor
  • Transistor
Q.11
Efficiency of power transfer when maximum transfer of power c xerosis
  • 100%
  • 80%
  • 75%
  • 50%
Q.12
Kirchhoff s current law states that
  • Net current flow at the junction is positive
  • Hebraic sum of the currents meeting at the junction is zero
  • No current can leave the junction without some current entering it
  • Total sum of currents meeting at the junction is zero
Q.13
In an RC series circuit R =Ω and XC =Ω. In this circuit
  • the current and voltage are in phase
  • the current leads the voltage by about 6°
  • the current leads the voltage by about 84°
  • the current lags the voltage by about 6°
Q.14
A two branch parallel circuit has aΩ resistance and 1 H inductance in one branch and aμF capacitor in the second branch. It is fed fromV ac supply, at resonance, the input impedance of the circuit is
  • 500 Ω
  • 50 Ω
  • 20 Ω
  • 5 Ω
Q.15
In an R-C series circuit excited by a voltage E, the charge across capacitor at t =is
  • 0
  • CE
  • CE (1 - e-t/RC)
  • none of the above
0 h : 0 m : 1 s