GATE EE 2006 | GATE EE Year Wise Previous Years Questions

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GATE EE 2006

MCQ (Single Correct Answer)

-0.3

Which of the following statements holds for the divergence of electric and magnetic flux densities?

Both are zero

These are zero for static densities but non zero for time varying densities

It is zero for the electric flux density

It is zero for the magnetic flux density

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

The expression $$V = \int\limits_0^H {\pi {R^2}{{\left( {1 - {h \over H}} \right)}^2}dh\,\,\,} $$ for the volume of a cone is equal to _________.

$$\int\limits_0^R {\pi {R^2}{{\left( {1 - {h \over H}} \right)}^2}dr\,\,\,} $$

$$\int\limits_0^R {\pi {R^2}{{\left( {1 - {h \over H}} \right)}^2}dh\,\,\,} $$

$$\int\limits_0^H {\,\,2\pi rH\left( {1 - {r \over R}} \right)dh\,\,\,} $$

$$\int\limits_0^R {\,\,2\pi rH{{\left( {1 - {r \over R}} \right)}^2}dr\,\,\,} $$

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

A solar cell of $$350V$$ is feeding power to an $$ac$$ supply of $$440$$ $$V,$$ $$50$$ $$Hz$$ through a $$3$$- phase fully controlled briodge converter. A large inductance is connected in the $$dc$$ circuit to maintain the $$dc$$ current at $$20A.$$ If the solar cell resistance of $$0.5\Omega ,$$ then each thryristor will be reverse biased for a period of

$${125^ \circ }$$

$${120^ \circ }$$

$${60^ \circ }$$

$${55^ \circ }$$

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

A $$3$$ $$-$$ phase fully controlled bridge converter with free wheeling diode is fed from $$400$$ $$V$$, $$50$$ $$Hz$$ $$AC$$ source and is operating at a firing angle of $${60^ \circ }.$$ The load current is assumed constant at $$10A$$ due to high load inductance The input displacement factor $$(IDF)$$ and the input power factor $$(IPF)$$ of the converter will be

$$IDF=0.867:IPF=0.828$$

$$IDF=0.867:IPF=0.552$$

$$IDF=0.5:IPF=0.478$$

$$IDF=0.5:IPF=0.318$$

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