Virtual Labs

a: A signal that repeats itself exactly after a fixed time period Explanation

Explanation

b: A signal that never repeats Explanation

Explanation

c: A signal that only contains sine waves Explanation

Explanation

d: A signal that only exists for a finite time Explanation

Explanation

a:

f_0 = T

Explanation

b:

f_0 = 2\pi T

Explanation

c:

f_0 = \frac{1}{T}

Explanation

d:

f_0 = \frac{T}{2\pi}

Explanation

a: A signal that never repeats Explanation

Explanation

b: A signal that appears periodic but has slightly varying periods Explanation

Explanation

c: A signal that repeats exactly Explanation

Explanation

d: A signal that only exists for one period Explanation

Explanation

a: Square wave Explanation

Explanation

b: Triangular wave Explanation

Explanation

c: Gaussian pulse Explanation

Explanation

d: Full-wave rectified sine Explanation

Explanation

Periodic Signals