10 Questions
Which of the following is NOT a characteristic of global variables?
Can only be initialized at the time of declaration
What is a potential issue associated with overusing global variables?
Dependency issues
When are global variables destroyed in a program?
When the program terminates
What makes global variables convenient for sharing data in a program?
Visibility to all functions in the program
Why can overuse of global variables make programs harder to debug?
They can lead to dependency issues and any function can modify them
What are the four variables in a two-port network?
hi1, hi2, V1, V2
How can the relationships between V1, V2, i1, and i2 in a two-port network be expressed?
V1 = z11i1 + z12i2 and V2 = z21i1 + z22i2
What is the impedance matrix in the context of a two-port network?
[z11 z12; z21 z22]
Define Z11 in a two-port network.
Input impedance of port 1 when port 2 is open-circuited
Explain Z21 in the context of a two-port network.
Forward transfer impedance from port 1 to port 2
Learn about global variables in programming, including their scope, lifetime, and initialization. Understand how global variables can be accessed from any part of the program and exist throughout the entire program execution.
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