Electrical Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE EE 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 33
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The static electric field inside a dielectric medium with relative permittivity,
, expressed in cylindrical coordinate system is given by the following expression
where
,
,
are unit vectors along
,
and
directions, respectively. If the above expression represents a valid electrostatic field inside the medium, then the volume charge density associated with this field in terms of free space permittivity,
, in SI units is given by:Your answerChoose one option.
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Consider a permanent magnet dc (PMDC) motor which is initially at rest. At
, a dc voltage of 5 V is applied to the motor. Its speed monotonically increases from 0 rad/s to 6.32 rad/s in 0.5 s and finally settles to 10 rad/s. Assuming that the armature inductance of the motor is negligible, the transfer function for the motor isYour answerChoose one option.
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Which of the following options is correct for the system shown below?

Your answerChoose one option.
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