Questions 21–30 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 3 of 7

Question 11

Open question
EEMCQ1 markNeeds review
A three-phase synchronous motor draws 200 A from the line at unity power factor at rated load. Considering the same line voltage and load, the line current at a power factor of 0.5 leading is
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Question 12

Open question
EEMCQ1 markNeeds review
In the circuit shown below, the switch is closed at

. The value of

in degrees which will give the maximum value of DC offset of the current at the time of switching is
Diagram for Electrical Engineering question 12

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Question 13

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EEMCQ1 markNeeds review
The output response of a system is denoted as

, and its Laplace transform is given by

. The steady state value of

is
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Question 14

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EEMCQ1 markNeeds review
The open loop transfer function of a unity feedback system is given by

. In

plane, the Nyquist plot of

passes through the negative real axis at the point
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Question 15

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EEMCQ1 markNeeds review
The characteristic equation of a linear time-invariant (LTI) system is given by

. The system is BIBO stable if
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Question 16

Open question
EEMCQ1 markNeeds review
Given,

is the gate-source voltage,

is the drain source voltage, and

is the threshold voltage of an enhancement type NMOS transistor, the conditions for transistor to be biased in saturation are
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Question 17

Open question
EEMCQ1 markNeeds review
A current controlled current source (CCS) has an input impedance of 10

and output impedance of 100 k

. When this CCS is used in a negative feedback closed loop with a loop gain of 9, the closed loop output impedance is
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Question 18

Open question
EENAT1 markNeeds review
If

, the value of line integral

evaluated over contour

formed by the segments

is _________.

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Question 19

Open question
EENAT1 markNeeds review
The current

flowing in the circuit shown below in amperes (round off to one decimal place) is ________.
Diagram for Electrical Engineering question 19


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Question 20

Open question
EENAT1 markNeeds review
A co-axial cylindrical capacitor shown in Figure (i) has dielectric with relative permittivity

. When one-fourth portion of the dielectric is replaced with another dielectric of relative permittivity

as shown in Figure (ii), the capacitance is doubled. The value of

is ________.
Diagram for Electrical Engineering question 20


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