Electrical Engineering MCQs

Page No. 236

“Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual source currents and source resistance is the parallel combination of individual source resistances”. This statement is associated with:


aThevenin’s theorem


b Millman’s theorem


cMaximum power transfer theorem


dNone 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”. The above statement is associated with:


aThevenin’s theorem


bNorton’s theorem


c Superposition theorem


dNone of the above



A passive network is one which contains____________?


aonly variable resistances


b only some sources of e.m.f. in it


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


dno source of e.m.f. in it



Which of the following is the passive element?


aCapacitance


b Ideal current source


cIdeal voltage source


dAll of the above


View Answer Capacitance

A star circuit has element of resistance R/2. The equivalent delta elements will be_____________?


a R/6


bfi?


c2R


d4R


View Answer fi?

The number of independent equations to solve a network is equal to_____________?


athe number of chords


bthe number of branches


csum of the number of branches and chords


d sum of number of branches, chords and nodes


View Answer the number of chords

Millman’s theorem yields____________?


aequivalent resistance


bequivalent impedance


cequivalent voltage source


dequivalent voltage or current source



A network which contains one or more than one source of e.m.f. is known as___________?


alinear network


bnon-linear network


cpassive network


dactive network


View Answer active network

The circuit has resistors, capacitors and semi-conductor diodes. The circuit will be known as___________?


anon-linear circuit


blinear circuit


cbilateral circuit


dnone of the above


View Answer non-linear circuit

For maximum transfer of power, internal resistance of the source should be_____________?


aequal to load resistance


bless than the load resistance


cgreater than the load resistance


dnone of the above



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