Answer:
3.0 A Is the correct option
Explanation:
I = V / R
I = 12/ 4
= 3
Answer:
a) 
b) 
c) 
Explanation:
From the question we are told that:
Given Frequencies
a. 100 Hz,
b. 1 kHz,
c. 100 kHz.
Generally the equation for Waveform Period is mathematically given by

Therefore
a)
For



b)
For



c)
For



Answer:
thats a lot, which one u want me to do?
Explanation:
They require a medium to travel through