GATE EE 2003 | GATE EE Year Wise Previous Years Questions

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

A chopper is employed to charge a battery as shown in figure. The charging current is $$5A$$. The duty ratio is $$0.2.$$ The chopper output voltage is also shown in figure. The peak to peak ripple current in the charging current is GATE EE 2003 Power Electronics - Choppers and Commutation Techniques Question 38 English

GATE EE 2003 Power Electronics - Choppers and Commutation Techniques Question 38 English

$$0.48$$ $$A$$

$$1.2$$ $$A$$

$$2.4$$ $$A$$

$$1$$ $$A$$

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

An inverter has a periodic output voltage with the output waveform as shown in figure GATE EE 2003 Power Electronics - Inverters Question 23 English

GATE EE 2003 Power Electronics - Inverters Question 23 English

When the conduction angle $$\alpha = {120^0},$$ the $$rms$$ fundamental component of the output voltage is

$$0.78$$ $$V$$

$$1.10$$ $$V$$

$$0.90$$ $$V$$

$$1.27$$ $$V$$

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

An inverter has a periodic output voltage with the output waveform as shown in figure GATE EE 2003 Power Electronics - Inverters Question 22 English

GATE EE 2003 Power Electronics - Inverters Question 22 English

With reference to the output waveform given in figure, the output of the converter will be free form $${5^{th}}$$ harmonic when

$$\alpha = {72^ \circ }$$

$$\alpha = {36^ \circ }$$

$$\alpha = {150^ \circ }$$

$$\alpha = {120^ \circ }$$

GATE EE 2003

MCQ (Single Correct Answer)

-0.3

A fully controlled natural commuted $$3$$-phase bridge rectifier is operating with a firing angle $$\alpha = {30^0}.$$ The peak to peak voltage ripple expressed as a ratio of the peak output $$dc$$ voltage at the output of the converter bridge is

$$0.5$$

$$\sqrt 3 /2$$

$$1 - \sqrt 3 /2$$

$$\sqrt 3 - 1$$

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