01․ Which of the following Y-parameters is dimensionless?

All the Y parameters are the ratio of current to voltage and therefore have unit mho.

02․ For finding the Z

_{11}parameter at the input port of a two port networkZ

_{11}= V_{1}/I_{1}when I_{2}= 0. To make I_{2}= 0, the output port is to be open circuited.03․ Unit step function is first derivative of

Ramp function is f(t) = t and unit step function is f(t) = 1. So the first derivative of ramp is a unit step.

04․ Which of the following is the correct relation?

AD-BC is the condition for reciprocity in case of ABCD parameters.

05․ Laplace transform analysis gives

Laplace transform transforms a function of time to a function of frequency.

06․ If a function is shifted by 'T', then it is correctly represented as

If a function is displaced by time T, then it is given as the product of the time displaced function and a unit step function displaced by same time T.

07․ The value of unity impulse function at time (t) = 0 is

Since the function is unit impulse, it will be 1 at time t = 0 and will be equal to 0 for any other time.

08․ The Laplace Transform of a shifted unit step f (t) = U (t-a) is

The laplace transform of a function displaced by time T is given by e

^{-sT}.F(s). F(s) is the laplace transform of the original signal.09․ Which of the following theorems can be applied to any network- linear or nonlinear, active or passive, time variant or time invariant?

Tellegen theorem is applicable to a very general class of lumped networks composed of elements that are - linear or nonlinear, active or passive, time variant or time invariant.

10․ Millman theorem yields equivalent

Millman theorem gives the equivalent value of voltage or current for a network consisting of any number of current sources.

<<<4950515253>>>