GATE EE

Network Theorems

Electric Circuits

(Past Years Questions)

Marks 1

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For the given circuit the Thevenin equivalent is to be determined. The Thevenin voltage, VTh (in volt), seen from termin...
GATE EE 2015 Set 1
A non-ideal voltage source VS has an internal impedance of ZS. If a purely resistive load is to be chosen that maximizes...
GATE EE 2014 Set 3
A source $$v_s\left(t\right)=V\cos100\mathrm{πt}$$ has an internal impedance of (4 + j3) Ω.If a purely resistive load co...
GATE EE 2013
The impedance looking into nodes 1 and 2 in the given circuit is ...
GATE EE 2012
In the circuit shown below, the current through the inductor is ...
GATE EE 2012
In the circuit given below, the value of R required for the transfer of maximum power to the load having a resistance of...
GATE EE 2011
In the figure the current source is $$1\,\,\angle \,0\,A,$$ $$R = \,1\,\,\Omega ,$$ the impedances are $${Z_C} = - j\,...
GATE EE 2006
In the Fig. $${Z_1} = 10\angle - {60^ \circ },\,\,{Z_2} = 10\angle {60^ \circ },\,$$ $${Z_3} = 50\angle {53.13^ \circ }...
GATE EE 2003
Superposition principle is not applicable to a network containing time-varying registors.
GATE EE 1994

Marks 2

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For the network given in figure below, the Thevenin's voltage Vab is ...
GATE EE 2017 Set 2
In the circuit shown below, the maximum power transferred to the resistor R is _______ W. ...
GATE EE 2017 Set 1
In the circuit shown below, the node voltage VA is _________ V. ...
GATE EE 2016 Set 1
The Norton’s equivalent source in amperes as seen into the terminals X and Y is _______. ...
GATE EE 2014 Set 3
In the circuit shown below, if the source voltage $$V_s=100\angle53.12^\circ\;V$$ then the Thevenin’s equivalent voltage...
GATE EE 2013
If $$V_A-V_B=\;6\;V$$, then $$V_C-V_D$$ is ...
GATE EE 2012
Assuming both the voltage sources are in phase, the value of R for which maximum power is transferred from circuit A to ...
GATE EE 2012
For the circuit given above, the Thevenin's resistance across the terminals $$A$$ and $$B$$ is ...
GATE EE 2009
For the circuit given above, the Thevenin's voltage across the terminals $$A$$ and $$B$$ is ...
GATE EE 2009
In the given Fig. the Thevenin's equivalent pair (voltage, impedence), as seen at the terminals $$P-Q$$, is given by ...
GATE EE 2005
In Fig. the potential difference between points $$P$$ and $$Q$$ is ...
GATE EE 2003
Two ac sources feed a common variable resistive load as shown in Fig. Under the maximum power transfer condition, the po...
GATE EE 2003
Viewed from the terminals $$A, B$$ the following circuit shown in Figure can be reduced to an equivalent circuit of a si...
GATE EE 1998
For the circuit shown in Fig, the Norton equivalent source current value is _________ $$A$$ and its resistance is ______...
GATE EE 1997

Marks 5

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An electrical network is fed by two $$ac$$ sources, as shown in Fig. Given that $${Z_1} = \left( {1 - j} \right)\Omega ...
GATE EE 2002
Predict the current $${\rm I}$$ in Fig. in response to a voltage of $$20\angle {0^0}\,V.$$ The impedance values are give...
GATE EE 2000
Find the Thevenin equivalent about $$AB$$ for the circuit shown in Figure. ...
GATE EE 1997

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