# Electronics and Communication Engineering - Signals and Systems

Exercise : Signals and Systems - Section 10
1.
If F(jω) is the Fourier transform of f(t), then
£ f(- t) = F(jω)
£ f(- t) = F* (jω)
£ f(- t) = F(- jω)
£ f(- t) = F* (- jω)
Explanation:
No answer description is available. Let's discuss.

2.

Assertion (A): Heaviside partial expansion gives a simple procedure to find inverse Laplace transform of the terms having a complex conjugate pair of roots.

Reason (R): If I(s) = P(s)/Q(s) and all roots of Q(s) = 0 are simple, i(t) will have terms with exponentials having real exponents only.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
Explanation:
No answer description is available. Let's discuss.

3.
An impulse train is
a number of pulses
a number of pulses spaced from each other
a number of pulses all originating together
none of the above
Explanation:
No answer description is available. Let's discuss.

4.
For formation of state equations, the inductors and current sources
should be in tree
should be in cotree
may be in tree or cotree
should be in both tree and cotree