Why we don’t use 2-20mA, 1-20mA, 3-20mA or 10-50mA signal instead of 4-20mA ?
Answer : Generally, in a transistor some amount of voltage is required for turning it on...
How to calculate the flow rate in Vortex flow meter ? What is K factor ? Can you give me an example calculation to understand the same as better ?
Answer : Vortex flow meters are flow sensors that detect the frequency of vortices...
Difference Between Get and Post Method in PHP ?
Answer : GET requests can be cached...
How to run PHP in command line ?
Answer : PHP is a server side scripting language, a lot of development using PHP...
How to download a php script directly in your script page ?
Answer : Here we create a PHP script, name it "download.php"...
What is Magic Code ?
Answer : Magic code is used to describe...
How to find out, how a user visited a particular page ?
Answer : We add a counter in that page....
