Q.1
Which of the following pairs are correctly matched? Brune's realisation : realisation with ideal transformer.Cauer realisation : ladder realisation.Bott Duffin realisation : with non ideal transformer. Select the answer using the following codes:
  • 1, 2 and 3
  • 2 and 3
  • 1 and 3
  • 1 and 2
Q.2
The synthesis of minimum function was suggested by
  • O'Brune
  • R. Richards
  • Bott and Duffin
  • none of the above
Q.3
A cable has an insulation resistance ofohms. If the length is doubled, the insulation resistance will be
  • 2 x 1010 Ω
  • 0.5 x 1010 Ω
  • 1010 Ω
  • 4 x 1010 Ω
Q.4
Two networks are cascaded through an ideal buffer. If td1 and td2 are delay times of network, the overall delay time is
  • td1 + td2
  • t2d1 + t2d2
  • td1 + td2
  • All of above
Q.5
Wave A =sin ωt and wave B =cos ωt. Then
  • rms values of the two waves are equal
  • rms values of A is more than that of B
  • rms values of A is less than that of B
  • rms values of the two waves may or may not be equal
Q.6
The drift velocity of electrons is
  • very small as compared to speed of light
  • equal to speed of light
  • almost equal to speed of light
  • half the speed of light
Q.7
The terms RMS and average values apply only to sine waves.
  • True
  • False
Q.8
For a transmission line open circuit and short circuit impedances areΩ and 5 Ω. Then characteristic impedance is
  • 100 Ω
  • 50 Ω
  • 25 Ω
  • 10 Ω
Q.9
Henry is equivalent to
  • Volts/Ampere
  • Weber/Volt
  • Weber/Ampere
  • Weber/Ampere2
Q.10
In a parallel resonant circuit, the circuit current at resonance is maximum.
  • True
  • False
Q.11
An RLC series circuit is underdamped. To make it overdamped, the value of R
  • has to be increased
  • has to be decreased
  • has to be increased to infinity
  • has to be reduced to zero
Q.12
In a minimum function
  • the degree of numerator and denominator are equal
  • the degree of numerator and denominator are unequal
  • the degree of numerator is one more than degree of denominator
  • the degree of numerator is one less than degree of denominator
Q.13
Superposition theorem can be applied only to circuits having
  • Resistive elements
  • Passive elements
  • Nonlinear elements
  • Linear bilateral elements
Q.14
A linear resistor having 0 A. current controlled resistor B. voltage controlled resistor C. both current controlled and voltage controlled resistor D. none of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on BoardSuperposition theorem can be applied only to circuits having A. Resistive elements B. Passive elements C. Nonlinear elements D. Linear bilateral elements Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board 1 2 3 4 5 6 7 8 9 10
  • current controlled resistor
  • voltage controlled resistor
  • both current controlled and voltage controlled resistor
  • none of the above
Q.15
The circuit has resistors, capacitors and semiconductor diodes. The circuit will be known as
  • Nonlinear circuit
  • Linear circuit
  • Bilateral circuit
  • None of the above
Q.16
For maximum transfer of power, internal resistance of the source should be
  • Equal to load resistance
  • Less than the load resistance
  • Greater than the load resistance
  • None of the above
Q.17
For high efficiency of transfer of power, internal resistance of the source should be
  • Equal to the load resistance
  • Less than the load resistance
  • More than the load resistance
  • None of the above
Q.18
“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
  • Millman’s theorem
  • Thevenin’s theorem
  • Superposition theorem
  • Maximum power transfer theorem
Q.19
Which of the following is the passive element?
  • Capacitance
  • Ideal current source
  • Ideal voltage source
  • All of the above
Q.20
“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”.The above statement is associated with
  • Thevenin’s theorem
  • Norton’s theorem
  • Superposition theorem
  • None of the above
0 h : 0 m : 1 s