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Network Theorems Quiz practies questions test1
Network Theorems Quiz practies questions test1
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1. 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 curreht can leave the junction without some current entering it.
total sum of currents meeting at the junction is zero
2. According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.fs. in any closed loop of a network is always ______.
negative
positive
determined by battery e.m.fs.
zero
3. Kirchhoffs current law is applicable to only _______.
junction in a network
closed loops in a network
electric circuits
electronic circuits
4. Kirchhoffs voltage law is related to _____.
junction currents
battery e.m.fs.
IR drops
both (b) and (c)
5. Superposition theorem can be applied only to circuits having ______.
resistive elements
passive elements
non-linear elements
linear bilateral elements
6. The concept on which Superposition theorem is based is ______.
reciprocity
duality
non-linearity
linearity
7. Thevenin resistance Rth is found ______.
by removing voltage sources along with their internal resistances
by short-circuiting the given two terminals
between any two 'open' terminals
between same open terminals as for Etk
8. An ideal voltage source should have ______.
large value of e.m.f.
small value of e.m.f.
zero source resistance
infinite source resistance
9. For a voltage source ______.
terminal voltage is always lower than source e.m.f.
terminal voltage cannot be higher than source e.m.f.
the source e.m.f. and terminal voltage are equal
All of the above
10. To determine the polarity of the voltage drop across a resistor, it is necessary to know _____.
value of current through the resistor
direction of current through the resistor
value of resistor
e.m.fs. in the circuit
11. "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 ______.
Millman's theorem
Thevenin's theorem
Superposition theorem
Maximum power transfer theorem
12. "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". The above statement is associated with ______.
Thevenin's theorem
Millman's theorem
Maximum power transfer theorem
None of the above
13. "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
14. Which of the following is non-linear circuit parameter ?
Inductance
Condenser
Wire wound resistor
Transistor
15. A capacitor is generally a ______.
bilateral and active component
active, passive, linear and nonlinear component
linear and bilateral component
non-linear and active component
16. "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
17. Kirchhoff s law is applicable to ______.
passive networks only
a.c. circuits only
d.c. circuits only
both a.c. as well d.c. circuits
18. Kirchhoff s law is not applicable to circuits with ______.
lumped parameters
passive elements
distributed parameters
non-linear resistances
19. Kirchhoff's voltage law applies to circuits with ______.
nonlinear elements only
linear elements only
linear, non-linear, active and passive elements
linear, non-linear, active, passive, time varying as wells as time-in-variant elements
20. The resistance LM will be ______.
6.66 Q
12 Q
18 Q
20 Q
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