1
GATE EE 2006
+2
-0.6
The circuit shown in the figure is energized by a sinusoidal voltage source $${V_1}$$ at a frequency which causes resonance with a current of $${\rm I}$$. The phasor diagram which is applicable to this circuit is

A B C D 2
GATE EE 2005
+2
-0.6
The $$RL$$ circuit of the figure is fed from a constant magnitude, variable frequency sinusoidal voltage source $${V_{IN.}}$$ At $$100Hz,$$ the $$R$$ and $$L$$ elements each have a voltage drop $${u_{RMS}}.$$ If the frequency of the source is changed to $$50Hz,$$ then new voltage drop across $$R$$ is A
$$\sqrt {{5 \over 8}} \,\,{u_{RMS}}$$
B
$$\sqrt {{2 \over 3}} \,\,{u_{RMS}}$$
C
$$\sqrt {{8 \over 5}} \,\,{u_{RMS}}$$
D
$$\sqrt {{3 \over 2}} \,\,{u_{RMS}}$$
3
GATE EE 2004
+2
-0.6
In Fig. the admittance values of the elements in Siemens are
$${Y_R} = 0.5 + j0,$$
$${Y_L} = 0 - j\,1.5,$$
$${Y_C} = 0 + j\,0.3$$ respectively.
The value of $${\rm I}$$ as a phasor when the voltage $$E$$ across the elements is $$10\angle {0^0}\,V$$ is A
$$1.5 + j\,0.5$$
B
$$5 - j\,18$$
C
$$0.5 + j\,1.8$$
D
$$5 - j\,12$$
4
GATE EE 2003
+2
-0.6
In the circuit of Fig. the magnitudes of $${V_L}$$ and $${V_C}$$ are twice that of $${V_R}$$. The inductance of the coil is A
$$2.14$$ $$mH$$
B
$$5.30$$ $$H$$
C
$$3.18$$ $$mH$$
D
$$1.32$$ $$H$$
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics
Digital Electronics
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