Questions 541–550 of 715. Imported answers require independent review unless marked reviewed.

Topic practice 715 questionsPage 55 of 72

Question 11

Open question
EEMCQ1 markNeeds review
Let f be a real-valued function of a real variable defined as

for

, and

for

. Which one of the following statements is true?
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Question 12

Open question
EEMCQ1 markNeeds review
The value of the directional derivative of the function

at the point (2, −1, 1) in the direction of the vector

is
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Question 13

Open question
EEMCQ1 markNeeds review
The value of the integral

in counter clockwise direction around a circle C of radius 1 with center at the point

is
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Question 14

Open question
EEMCQ1 markNeeds review
In the logic circuit shown in the figure, Y is given by
Diagram for Electrical Engineering question 14

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Question 15

Open question
EEMCQ1 markNeeds review
The op-amp shown in the figure is ideal. The input impedance

is given by
Diagram for Electrical Engineering question 15

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Question 16

Open question
EEMCQ1 markNeeds review
A continuous-time input signal x(t) is an eigenfunction of an LTI system, if the output is
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Question 17

Open question
EENAT1 markNeeds review
Consider a non-singular 2×2 square matrix A. If trace(A)=4 and trace(

)=5, the determinant of the matrix A is ______ (up to 1 decimal place).

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Question 18

Open question
EENAT1 markNeeds review
Let f be a real-valued function of a real variable defined as

, where [x] denotes the largest integer less than or equal to x. The value of

is ______ (up to 2 decimal places).

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Question 19

Open question
EENAT1 markNeeds review
In the two-port network shown, the

parameter (where,

, when

) in ohms is __________ (up to 2 decimal places).
Diagram for Electrical Engineering question 19


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Question 20

Open question
EENAT1 markNeeds review
The series impedance matrix of a short three-phase transmission line in phase coordinates is

. If the positive sequence impedance is (1 + j 10) Ω, and the zero sequence is (4 + j 31) Ω, then the imaginary part of

(in Ω) is _____ (up to 2 decimal places).

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