Top 250+ Solved Electronic Devices and Circuits MCQ Questions Answer
Q. To determine the polarity of the voltage drop across a resistor, it is necessary to know
a. value of current through the resistor
b. direction of current through the resistor
c. value of resistor
d. e.m.fs. in the circuit
Q. "Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with
a. mill man’s theorem
b. thevenin\s theorem
c. superposition theorem
d. maximum power transfer theorem
Q. "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
a. compensation theorem
b. superposition theorem
c. reciprocity theorem
d. none of the above
Q. Which of the following is non-linear circuit parameter?
a. inductance
b. condenser
c. wire wound resistor
d. transistor
Q. A capacitor is generally a
a. bilateral and active
b. active, passive,
c. linear and bilateral
d. non-linear and
Q. "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
a. thevenin\s theorem
b. norton\s theorem
c. superposition theorem
d. none of the above
Q. Kirchhoff s law is applicable to
a. passive networks only
b. a.c. circuits only
c. d. circuits only
d. both a.c. as well c. circuits
Q. Kirchhoff s law is not applicable to circuits with
a. lumped parameters
b. passive elements
c. distributed parameters
d. non-linear resistances
Q. For high efficiency of transfer of power, internal resistance of the source should be
a. equal to the load resistance
b. less than the load resistance
c. more than the load resistance
d. none of the above
Q. If resistance across LM in Fig. 2.30 is 15 ohms, the value of R is
a. 10 q
b. 20 q
c. 30 q
d. 40 q
Q. For maximum transfer of power, internal resistance of the source should be
a. equal to load resistance
b. less than the load resistance
c. greater than the load resistance
d. none of the above
Q. If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be
a. a voltage source
b. a current source
c. both of above
d. none of the above
Q. The circuit whose properties are same in either direction is known as
a. unilateral circuit
b. bilateral circuit
c. irreversible circuit
d. reversible circuit