It Transmits electrical currents. You can use it as an amplifier or switch of currents.
Answer: Dereferencing a variable that is not a pointer
Explanation:
The execution time also refered to as the CPU time pertaining to a given task is the time that is used by the system to execute a task.
Some of the reasons for a fatal execution-time error include:
• Dereferencing a pointer that has not been initialized properly
• Dereferencing a null pointer
• Dereferencing a pointer that has not been assigned to point to a specific address.
It should be noted that dereferencing a variable that is not a pointer doesn't cause a fatal execution-time error.
Answer:
<em>A checkbox</em>
Explanation:
A checkbox <em>(check box, tick box, tick box) is an User interface widget that allows the user to choose a binary option.</em>
Like a choice between any of two potential options that are mutually exclusive.
For instance, on a simple yes / no question, the user may have to answer ' yes ' (checked) or ' no ' (not checked).
Answer:
B.lightning striking a tree
Explanation:
The crowd dispersing in all directions is not a closed-loop by any means, and students jogging around an oval track as well is not a closed-loop, and also not a cross country run from one point to another. However, the lightning striking a tree is a closed loop that best models a circuit. And as lightning strikes the tree, like a closed circuit, tree catches the fire, or in circuitry words, the current is generated, and tree catches the fire due to it, just like bulb starts glowing.
