GATE EE 2005 | GATE EE Year Wise Previous Years Questions

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GATE EE 2005

MCQ (Single Correct Answer)

-0.3

The output voltage waveform of a three - phase square-wave inverter contains

only even harmonics

both odd and even harmonics

only odd harmonics

only triple harmonics

GATE EE 2005

MCQ (Single Correct Answer)

-0.6

The given figure shows a step $$-$$ down chopper switched at $$1$$ $$KHz$$ with a duty ratio $$D = 0.5.$$ The peak - peak ripple in the load current is close to GATE EE 2005 Power Electronics - Choppers and Commutation Techniques Question 35 English

GATE EE 2005 Power Electronics - Choppers and Commutation Techniques Question 35 English

$$10$$ $$A$$

$$0.5$$ $$A$$

$$0.125$$ $$A$$

$$0.25$$ $$A$$

GATE EE 2005

MCQ (Single Correct Answer)

-0.6

An electronic switch $$S$$ is required to block voltages of either polarity during its OFF state as shown in figure (a). This switch is required to conduct in only one direction during its ON state as shown in the figure (b). GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 13 English 1

GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 13 English 1

Which of the following are valid realizations of the switch $$s$$?

GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 13 English 2

Only $$1$$

$$1$$ and $$2$$

$$1$$ and $$3$$

$$3$$ and $$4$$

GATE EE 2005

MCQ (Single Correct Answer)

-0.3

A three - phase diode bridge rectifier is fed from a $$400$$ $$V$$ $$RMS$$. $$50$$ $$Hz$$, three $$-$$ phase $$AC$$ source. If the load is purely resistive, then peak instantaneous output voltage is equal to

$$400\,V$$

$$400\,\,\sqrt 2 V$$

$$400\,\,\sqrt {{2 \over 3}\,} \,V$$

$${{400} \over {\sqrt 3 \,V}}$$

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