Networks I

Course No. 0909-201-01

Fall 1997, 2nd Quarter

Quiz 7.

Submit by Monday, December 8, 1997, 4:30 PM.
Submissions No Longer Accepted

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Answer ALL Questions.

Question 1. Which of the following pairs source transformations is actually valid with respect to terminals a - b?

: A)
: B)
: C)
: D)

: None of them are equivalent.

Question 2. Consider a linear system which when supplied with inputs x₁ and x₂, consecutively, provides outputs y₁ and y₂, respectively. If the operator L is used to describe the behavior of the linear system, then we can write:

y₁ = L{x₁}
y₂= L {x₂}

Which of the following equations are valid representations of the linear system?

: L{6x₁ + 4x₂} = 2{3y₁ + 2y₂}
: 0.3L{100x₂} = 30y₂
: L{x₁ - x₂} = -y₂ + y₁
: All of the above
: None of the above.

Question 3. Which of the following circuits are equivalent with respect to terminals a-b?

: A)
: B)
: C)

: All of the above
: None of the above.

Question 4. A voltage pulse applied to a 100mH inductor is 0 for t<0, and v(t) = (20t)e^(-10t) for t > 0. What would be the energy stored in the inductor after the pulse has been applied for an infinitely long time?
: infinite
: zero
: 200mJ
: 2J
: Cannot be determined.

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