January 2013 Flashcards
1
Q
What is the charge of an alpha particle?
A
+2
2
Q
Where is gamma sourced from?
A
An unstable nucleus.
3
Q
How does beta particle effect the number of protons?
A
The number of protons increases.
4
Q
What is meant by digital signal?
A
Has two values only.
5
Q
Vp x Ip =
A
Vs x Is
6
Q
How could a signal be changed to carry more information?
A
- Increase frequency.
- Multiplexing.
