Answer:
they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound. You hear the buzzer sound and know that someone is calling you.
Explanation:
Answer:
A complex wave is a wave made up of a series of sine waves; it is therefore more complex than a single pure sine wave. This series of sine waves always contains a wave called the "FUNDAMENTAL", that has the same FREQUENCY (repetition rate) as the COMPLEX WAVE being created.
Examples for complex wave:
<em>• The Square wave
</em>
<em>• The Triangular wave
</em>
<em>• The Saw-tooth wave</em>
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<em>Hope you got it </em>
<em>
If you have any question just ask me
</em>
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Answer:
- \' is used to escape a single quote in a string enclosed in single quotes like;
my_string = 'this is John\'s ball'.
- \n is used to jump to a new line, Eg;
my_string = "Johns is a good boy\nbut he hates going to school."
the next set of the string after the '\n' character is displayed on the next line.
- \t is used to add a tab space to a string.
my_string = 'Jane is \thungry'
the character adds four character spaces before the word 'hungry'.
- \r adds a carriage return (or enter in keyboards) to start a new block paragraph in a string.
my_string = "Johns is a good boy\rbut he hates going to school."
Explanation:
Escape sequences in programming are used to format strings or output syntax of a program. They always begin with the backslash. Examples of escape sequence are " \' ", "\n", "\t", "\r", etc.
