1
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Integration of the complex function $$f\left( z \right) = {{{z^2}} \over {{z^2} - 1}},$$ in the counterclockwise direction, around $$\left| {z - 1} \right| = 1,$$ is
A
$$ - \pi i$$
B
$$0$$
C
$$\pi i$$
D
$$2\pi i$$
2
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6
A three-phase fully controlled bridge converter is fed through star-delta transformer as shown in the figure. GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 22 English

The converter is operated at a firing angle of $${30^0}.$$ Assuming the load current $$\left( {{{\rm I}_0}} \right)$$ to be virtually constant at $$1$$ $$p.u.$$ and transformer to be an ideal one, the input phase current waveform is

A
GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 22 English Option 1
B
GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 22 English Option 2
C
GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 22 English Option 3
D
GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 22 English Option 4
3
GATE EE 2014 Set 3
Numerical
+2
-0
A diode circuit feeds an ideal inductor as shown in the figure. Given $${V_s} = 100\,\,\sin \,\left( {\omega t} \right)V,$$ where $$\omega = 100\pi $$ rad/s, and $$L=31.83$$ $$mH$$. The initial value of inductor current is zero. Switch $$S$$ is closed at $$t=2.5$$ $$ms.$$ The peak value of inductor current $${i_L}\left( {in\,\,A} \right)$$ in the first cycle is __________. GATE EE 2014 Set 3 Power Electronics - Single and Three Phase Rectifier Question 21 English
Your input ____
4
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6
A single - phase voltage source inverter shown in figure is feeding power to load. The triggering pulses of the devices are also shown in the figure. GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English 1 GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English 2

If the load current is sinusoidal and is zero at $$0,\,\,\pi ,2\pi ....,$$ the node voltage $${V_{AO}}$$ has the waveform

A
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 1
B
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 2
C
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 3
D
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 4
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